Home / 278,730,399.82-384,658,065.15-159,676,001.58

Finding the Fourth Proportional to 278,730,399.82, 384,658,065.15 and 159,676,001.58

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Solution

The fourth proportional to 278,730,399.82, 384,658,065.15 and 159,676,001.58 is: 220,358,675.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,730,399.82 : 384,658,065.15 = 159,676,001.58 : x
  2. Step 2: Convert to fraction form
    278,730,399.82/384,658,065.15 = 159,676,001.58/x
  3. Step 3: Cross multiply
    278,730,399.82x = 384,658,065.15 × 159,676,001.58
  4. Step 4: Simplify right side
    278,730,399.82x = 61,420,661,817,820,448
  5. Step 5: Solve for x
    x = 61,420,661,817,820,448/278,730,399.82
  6. Step 6: Final answer
    x = 220,358,675.83

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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.