Home / 67,068,619.43-100,614,263.28-21,001,402.76

Finding the Fourth Proportional to 67,068,619.43, 100,614,263.28 and 21,001,402.76

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Solution

The fourth proportional to 67,068,619.43, 100,614,263.28 and 21,001,402.76 is: 31,505,653.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,068,619.43 : 100,614,263.28 = 21,001,402.76 : x
  2. Step 2: Convert to fraction form
    67,068,619.43/100,614,263.28 = 21,001,402.76/x
  3. Step 3: Cross multiply
    67,068,619.43x = 100,614,263.28 × 21,001,402.76
  4. Step 4: Simplify right side
    67,068,619.43x = 2,113,040,666,438,952
  5. Step 5: Solve for x
    x = 2,113,040,666,438,952/67,068,619.43
  6. Step 6: Final answer
    x = 31,505,653.23

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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.