Home / 72,073,313.46-108,128,398.41-20,955,332.27

Finding the Fourth Proportional to 72,073,313.46, 108,128,398.41 and 20,955,332.27

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Solution

The fourth proportional to 72,073,313.46, 108,128,398.41 and 20,955,332.27 is: 31,438,356.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,073,313.46 : 108,128,398.41 = 20,955,332.27 : x
  2. Step 2: Convert to fraction form
    72,073,313.46/108,128,398.41 = 20,955,332.27/x
  3. Step 3: Cross multiply
    72,073,313.46x = 108,128,398.41 × 20,955,332.27
  4. Step 4: Simplify right side
    72,073,313.46x = 2,265,866,516,774,810.50
  5. Step 5: Solve for x
    x = 2,265,866,516,774,810.50/72,073,313.46
  6. Step 6: Final answer
    x = 31,438,356.42

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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.