Home / 65,720,278.40-90,663,810.72-42,522,967.04

Finding the Fourth Proportional to 65,720,278.40, 90,663,810.72 and 42,522,967.04

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Solution

The fourth proportional to 65,720,278.40, 90,663,810.72 and 42,522,967.04 is: 58,662,171.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,720,278.40 : 90,663,810.72 = 42,522,967.04 : x
  2. Step 2: Convert to fraction form
    65,720,278.40/90,663,810.72 = 42,522,967.04/x
  3. Step 3: Cross multiply
    65,720,278.40x = 90,663,810.72 × 42,522,967.04
  4. Step 4: Simplify right side
    65,720,278.40x = 3,855,294,234,967,358.50
  5. Step 5: Solve for x
    x = 3,855,294,234,967,358.50/65,720,278.40
  6. Step 6: Final answer
    x = 58,662,171.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.