Home / 1,010,394,385.40-1,515,591,578.10-575,037,918.20

Finding the Fourth Proportional to 1,010,394,385.40, 1,515,591,578.10 and 575,037,918.20

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Solution

The fourth proportional to 1,010,394,385.40, 1,515,591,578.10 and 575,037,918.20 is: 862,556,877.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,394,385.40 : 1,515,591,578.10 = 575,037,918.20 : x
  2. Step 2: Convert to fraction form
    1,010,394,385.40/1,515,591,578.10 = 575,037,918.20/x
  3. Step 3: Cross multiply
    1,010,394,385.40x = 1,515,591,578.10 × 575,037,918.20
  4. Step 4: Simplify right side
    1,010,394,385.40x = 871,522,625,912,076,672
  5. Step 5: Solve for x
    x = 871,522,625,912,076,672/1,010,394,385.40
  6. Step 6: Final answer
    x = 862,556,877.30

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Half scale
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Double scale
Find fourth proportional to 1,010,394,386.40, 1,515,591,579.60 and 575,037,919.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.