Home / 321,879,787.52-482,814,960.96-79,542,694.40

Finding the Fourth Proportional to 321,879,787.52, 482,814,960.96 and 79,542,694.40

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Solution

The fourth proportional to 321,879,787.52, 482,814,960.96 and 79,542,694.40 is: 119,312,875.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,879,787.52 : 482,814,960.96 = 79,542,694.40 : x
  2. Step 2: Convert to fraction form
    321,879,787.52/482,814,960.96 = 79,542,694.40/x
  3. Step 3: Cross multiply
    321,879,787.52x = 482,814,960.96 × 79,542,694.40
  4. Step 4: Simplify right side
    321,879,787.52x = 38,404,402,891,389,208
  5. Step 5: Solve for x
    x = 38,404,402,891,389,208/321,879,787.52
  6. Step 6: Final answer
    x = 119,312,875.12

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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.