Home / 80,571,023.76-120,807,041.59-31,329,479.20

Finding the Fourth Proportional to 80,571,023.76, 120,807,041.59 and 31,329,479.20

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Solution

The fourth proportional to 80,571,023.76, 120,807,041.59 and 31,329,479.20 is: 46,974,973.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,571,023.76 : 120,807,041.59 = 31,329,479.20 : x
  2. Step 2: Convert to fraction form
    80,571,023.76/120,807,041.59 = 31,329,479.20/x
  3. Step 3: Cross multiply
    80,571,023.76x = 120,807,041.59 × 31,329,479.20
  4. Step 4: Simplify right side
    80,571,023.76x = 3,784,821,696,287,937
  5. Step 5: Solve for x
    x = 3,784,821,696,287,937/80,571,023.76
  6. Step 6: Final answer
    x = 46,974,973.38

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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.