Home / 78,732,000.30-118,098,000.45-48,120,998.70

Finding the Fourth Proportional to 78,732,000.30, 118,098,000.45 and 48,120,998.70

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Solution

The fourth proportional to 78,732,000.30, 118,098,000.45 and 48,120,998.70 is: 72,181,498.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,732,000.30 : 118,098,000.45 = 48,120,998.70 : x
  2. Step 2: Convert to fraction form
    78,732,000.30/118,098,000.45 = 48,120,998.70/x
  3. Step 3: Cross multiply
    78,732,000.30x = 118,098,000.45 × 48,120,998.70
  4. Step 4: Simplify right side
    78,732,000.30x = 5,682,993,726,127,050
  5. Step 5: Solve for x
    x = 5,682,993,726,127,050/78,732,000.30
  6. Step 6: Final answer
    x = 72,181,498.05

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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.