Home / 20,980,423,869.52-28,955,938,082.79-13,357,034,600.62

Finding the Fourth Proportional to 20,980,423,869.52, 28,955,938,082.79 and 13,357,034,600.62

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Solution

The fourth proportional to 20,980,423,869.52, 28,955,938,082.79 and 13,357,034,600.62 is: 18,434,587,845.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,980,423,869.52 : 28,955,938,082.79 = 13,357,034,600.62 : x
  2. Step 2: Convert to fraction form
    20,980,423,869.52/28,955,938,082.79 = 13,357,034,600.62/x
  3. Step 3: Cross multiply
    20,980,423,869.52x = 28,955,938,082.79 × 13,357,034,600.62
  4. Step 4: Simplify right side
    20,980,423,869.52x = 386,765,466,865,236,443,136
  5. Step 5: Solve for x
    x = 386,765,466,865,236,443,136/20,980,423,869.52
  6. Step 6: Final answer
    x = 18,434,587,845.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.