Home / 72,201,824.93-108,292,084.28-21,070,114.85

Finding the Fourth Proportional to 72,201,824.93, 108,292,084.28 and 21,070,114.85

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Solution

The fourth proportional to 72,201,824.93, 108,292,084.28 and 21,070,114.85 is: 31,602,063.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,201,824.93 : 108,292,084.28 = 21,070,114.85 : x
  2. Step 2: Convert to fraction form
    72,201,824.93/108,292,084.28 = 21,070,114.85/x
  3. Step 3: Cross multiply
    72,201,824.93x = 108,292,084.28 × 21,070,114.85
  4. Step 4: Simplify right side
    72,201,824.93x = 2,281,726,653,020,129.50
  5. Step 5: Solve for x
    x = 2,281,726,653,020,129.50/72,201,824.93
  6. Step 6: Final answer
    x = 31,602,063.46

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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.