Home / 78,894,252.80-118,341,379.20-21,386,431.70

Finding the Fourth Proportional to 78,894,252.80, 118,341,379.20 and 21,386,431.70

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Solution

The fourth proportional to 78,894,252.80, 118,341,379.20 and 21,386,431.70 is: 32,079,647.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,894,252.80 : 118,341,379.20 = 21,386,431.70 : x
  2. Step 2: Convert to fraction form
    78,894,252.80/118,341,379.20 = 21,386,431.70/x
  3. Step 3: Cross multiply
    78,894,252.80x = 118,341,379.20 × 21,386,431.70
  4. Step 4: Simplify right side
    78,894,252.80x = 2,530,899,823,544,600.50
  5. Step 5: Solve for x
    x = 2,530,899,823,544,600.50/78,894,252.80
  6. Step 6: Final answer
    x = 32,079,647.55

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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.