Home / 10,871,129.70-16,306,694.55-7,287,948.90

Finding the Fourth Proportional to 10,871,129.70, 16,306,694.55 and 7,287,948.90

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Solution

The fourth proportional to 10,871,129.70, 16,306,694.55 and 7,287,948.90 is: 10,931,923.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,871,129.70 : 16,306,694.55 = 7,287,948.90 : x
  2. Step 2: Convert to fraction form
    10,871,129.70/16,306,694.55 = 7,287,948.90/x
  3. Step 3: Cross multiply
    10,871,129.70x = 16,306,694.55 × 7,287,948.90
  4. Step 4: Simplify right side
    10,871,129.70x = 118,842,356,608,308.50
  5. Step 5: Solve for x
    x = 118,842,356,608,308.50/10,871,129.70
  6. Step 6: Final answer
    x = 10,931,923.35

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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.