Home / 219,041,532.65-328,606,142.56-80,867,979.52

Finding the Fourth Proportional to 219,041,532.65, 328,606,142.56 and 80,867,979.52

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Solution

The fourth proportional to 219,041,532.65, 328,606,142.56 and 80,867,979.52 is: 121,318,155.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,041,532.65 : 328,606,142.56 = 80,867,979.52 : x
  2. Step 2: Convert to fraction form
    219,041,532.65/328,606,142.56 = 80,867,979.52/x
  3. Step 3: Cross multiply
    219,041,532.65x = 328,606,142.56 × 80,867,979.52
  4. Step 4: Simplify right side
    219,041,532.65x = 26,573,714,805,664,596
  5. Step 5: Solve for x
    x = 26,573,714,805,664,596/219,041,532.65
  6. Step 6: Final answer
    x = 121,318,155.89

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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.