Home / 21,312,366.16-31,960,614.50-7,661,787.44

Finding the Fourth Proportional to 21,312,366.16, 31,960,614.50 and 7,661,787.44

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Solution

The fourth proportional to 21,312,366.16, 31,960,614.50 and 7,661,787.44 is: 11,489,828.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,312,366.16 : 31,960,614.50 = 7,661,787.44 : x
  2. Step 2: Convert to fraction form
    21,312,366.16/31,960,614.50 = 7,661,787.44/x
  3. Step 3: Cross multiply
    21,312,366.16x = 31,960,614.50 × 7,661,787.44
  4. Step 4: Simplify right side
    21,312,366.16x = 244,875,434,750,781.91
  5. Step 5: Solve for x
    x = 244,875,434,750,781.91/21,312,366.16
  6. Step 6: Final answer
    x = 11,489,828.62

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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.