Home / 10,200,745.80-15,301,118.70-7,888,977.45

Finding the Fourth Proportional to 10,200,745.80, 15,301,118.70 and 7,888,977.45

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Solution

The fourth proportional to 10,200,745.80, 15,301,118.70 and 7,888,977.45 is: 11,833,466.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,200,745.80 : 15,301,118.70 = 7,888,977.45 : x
  2. Step 2: Convert to fraction form
    10,200,745.80/15,301,118.70 = 7,888,977.45/x
  3. Step 3: Cross multiply
    10,200,745.80x = 15,301,118.70 × 7,888,977.45
  4. Step 4: Simplify right side
    10,200,745.80x = 120,710,180,384,073.31
  5. Step 5: Solve for x
    x = 120,710,180,384,073.31/10,200,745.80
  6. Step 6: Final answer
    x = 11,833,466.18

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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.