Home / 72,201,826.68-108,292,086.90-21,070,116.60

Finding the Fourth Proportional to 72,201,826.68, 108,292,086.90 and 21,070,116.60

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Solution

The fourth proportional to 72,201,826.68, 108,292,086.90 and 21,070,116.60 is: 31,602,066.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,201,826.68 : 108,292,086.90 = 21,070,116.60 : x
  2. Step 2: Convert to fraction form
    72,201,826.68/108,292,086.90 = 21,070,116.60/x
  3. Step 3: Cross multiply
    72,201,826.68x = 108,292,086.90 × 21,070,116.60
  4. Step 4: Simplify right side
    72,201,826.68x = 2,281,726,897,840,333
  5. Step 5: Solve for x
    x = 2,281,726,897,840,333/72,201,826.68
  6. Step 6: Final answer
    x = 31,602,066.08

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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.