Home / 8,787,397.79-12,127,108.65-4,919,885.12

Finding the Fourth Proportional to 8,787,397.79, 12,127,108.65 and 4,919,885.12

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Solution

The fourth proportional to 8,787,397.79, 12,127,108.65 and 4,919,885.12 is: 6,789,721.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787,397.79 : 12,127,108.65 = 4,919,885.12 : x
  2. Step 2: Convert to fraction form
    8,787,397.79/12,127,108.65 = 4,919,885.12/x
  3. Step 3: Cross multiply
    8,787,397.79x = 12,127,108.65 × 4,919,885.12
  4. Step 4: Simplify right side
    8,787,397.79x = 59,663,981,395,758.29
  5. Step 5: Solve for x
    x = 59,663,981,395,758.29/8,787,397.79
  6. Step 6: Final answer
    x = 6,789,721.24

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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.