Home / 1,008,232,448.40-1,512,348,672.60-947,010,445.20

Finding the Fourth Proportional to 1,008,232,448.40, 1,512,348,672.60 and 947,010,445.20

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Solution

The fourth proportional to 1,008,232,448.40, 1,512,348,672.60 and 947,010,445.20 is: 1,420,515,667.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,232,448.40 : 1,512,348,672.60 = 947,010,445.20 : x
  2. Step 2: Convert to fraction form
    1,008,232,448.40/1,512,348,672.60 = 947,010,445.20/x
  3. Step 3: Cross multiply
    1,008,232,448.40x = 1,512,348,672.60 × 947,010,445.20
  4. Step 4: Simplify right side
    1,008,232,448.40x = 1,432,209,989,736,555,008
  5. Step 5: Solve for x
    x = 1,432,209,989,736,555,008/1,008,232,448.40
  6. Step 6: Final answer
    x = 1,420,515,667.80

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Half scale
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Double scale
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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.