Home / 78,482,700.62-108,316,440.11-45,005,280.65

Finding the Fourth Proportional to 78,482,700.62, 108,316,440.11 and 45,005,280.65

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Solution

The fourth proportional to 78,482,700.62, 108,316,440.11 and 45,005,280.65 is: 62,113,201.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,482,700.62 : 108,316,440.11 = 45,005,280.65 : x
  2. Step 2: Convert to fraction form
    78,482,700.62/108,316,440.11 = 45,005,280.65/x
  3. Step 3: Cross multiply
    78,482,700.62x = 108,316,440.11 × 45,005,280.65
  4. Step 4: Simplify right side
    78,482,700.62x = 4,874,811,785,392,859
  5. Step 5: Solve for x
    x = 4,874,811,785,392,859/78,482,700.62
  6. Step 6: Final answer
    x = 62,113,201.34

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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.