Home / 127,013,565.32-175,340,305.62-85,182,328.78

Finding the Fourth Proportional to 127,013,565.32, 175,340,305.62 and 85,182,328.78

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Solution

The fourth proportional to 127,013,565.32, 175,340,305.62 and 85,182,328.78 is: 117,592,916.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,013,565.32 : 175,340,305.62 = 85,182,328.78 : x
  2. Step 2: Convert to fraction form
    127,013,565.32/175,340,305.62 = 85,182,328.78/x
  3. Step 3: Cross multiply
    127,013,565.32x = 175,340,305.62 × 85,182,328.78
  4. Step 4: Simplify right side
    127,013,565.32x = 14,935,895,561,270,172
  5. Step 5: Solve for x
    x = 14,935,895,561,270,172/127,013,565.32
  6. Step 6: Final answer
    x = 117,592,916.35

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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.