Home / 72,073,324.74-108,128,415.24-20,955,343.50

Finding the Fourth Proportional to 72,073,324.74, 108,128,415.24 and 20,955,343.50

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Solution

The fourth proportional to 72,073,324.74, 108,128,415.24 and 20,955,343.50 is: 31,438,373.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,073,324.74 : 108,128,415.24 = 20,955,343.50 : x
  2. Step 2: Convert to fraction form
    72,073,324.74/108,128,415.24 = 20,955,343.50/x
  3. Step 3: Cross multiply
    72,073,324.74x = 108,128,415.24 × 20,955,343.50
  4. Step 4: Simplify right side
    72,073,324.74x = 2,265,868,083,464,835
  5. Step 5: Solve for x
    x = 2,265,868,083,464,835/72,073,324.74
  6. Step 6: Final answer
    x = 31,438,373.24

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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.