Home / 80,762,442.30-121,143,663.45-48,513,815.10

Finding the Fourth Proportional to 80,762,442.30, 121,143,663.45 and 48,513,815.10

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Solution

The fourth proportional to 80,762,442.30, 121,143,663.45 and 48,513,815.10 is: 72,770,722.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,762,442.30 : 121,143,663.45 = 48,513,815.10 : x
  2. Step 2: Convert to fraction form
    80,762,442.30/121,143,663.45 = 48,513,815.10/x
  3. Step 3: Cross multiply
    80,762,442.30x = 121,143,663.45 × 48,513,815.10
  4. Step 4: Simplify right side
    80,762,442.30x = 5,877,141,289,149,928
  5. Step 5: Solve for x
    x = 5,877,141,289,149,928/80,762,442.30
  6. Step 6: Final answer
    x = 72,770,722.65

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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.