Home / 103,680,545.60-155,520,818.40-76,806,689.60

Finding the Fourth Proportional to 103,680,545.60, 155,520,818.40 and 76,806,689.60

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Solution

The fourth proportional to 103,680,545.60, 155,520,818.40 and 76,806,689.60 is: 115,210,034.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,680,545.60 : 155,520,818.40 = 76,806,689.60 : x
  2. Step 2: Convert to fraction form
    103,680,545.60/155,520,818.40 = 76,806,689.60/x
  3. Step 3: Cross multiply
    103,680,545.60x = 155,520,818.40 × 76,806,689.60
  4. Step 4: Simplify right side
    103,680,545.60x = 11,945,039,225,186,768
  5. Step 5: Solve for x
    x = 11,945,039,225,186,768/103,680,545.60
  6. Step 6: Final answer
    x = 115,210,034.40

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1.5x scale

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.