Home / 78,800,715.30-118,041,640.65-54,567,005.70

Finding the Fourth Proportional to 78,800,715.30, 118,041,640.65 and 54,567,005.70

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Solution

The fourth proportional to 78,800,715.30, 118,041,640.65 and 54,567,005.70 is: 81,740,106.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,800,715.30 : 118,041,640.65 = 54,567,005.70 : x
  2. Step 2: Convert to fraction form
    78,800,715.30/118,041,640.65 = 54,567,005.70/x
  3. Step 3: Cross multiply
    78,800,715.30x = 118,041,640.65 × 54,567,005.70
  4. Step 4: Simplify right side
    78,800,715.30x = 6,441,178,878,185,902
  5. Step 5: Solve for x
    x = 6,441,178,878,185,902/78,800,715.30
  6. Step 6: Final answer
    x = 81,740,106.72

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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.