Home / 71,748,162,315.90-107,621,676,603.45-18,689,092,875.90

Finding the Fourth Proportional to 71,748,162,315.90, 107,621,676,603.45 and 18,689,092,875.90

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Solution

The fourth proportional to 71,748,162,315.90, 107,621,676,603.45 and 18,689,092,875.90 is: 28,033,491,654.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,748,162,315.90 : 107,621,676,603.45 = 18,689,092,875.90 : x
  2. Step 2: Convert to fraction form
    71,748,162,315.90/107,621,676,603.45 = 18,689,092,875.90/x
  3. Step 3: Cross multiply
    71,748,162,315.90x = 107,621,676,603.45 × 18,689,092,875.90
  4. Step 4: Simplify right side
    71,748,162,315.90x = 2,011,351,509,501,951,082,496
  5. Step 5: Solve for x
    x = 2,011,351,509,501,951,082,496/71,748,162,315.90
  6. Step 6: Final answer
    x = 28,033,491,654.41

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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.