Home / 13,689,084.75-20,553,813.14-7,635,643.71

Finding the Fourth Proportional to 13,689,084.75, 20,553,813.14 and 7,635,643.71

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Solution

The fourth proportional to 13,689,084.75, 20,553,813.14 and 7,635,643.71 is: 11,464,725.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,689,084.75 : 20,553,813.14 = 7,635,643.71 : x
  2. Step 2: Convert to fraction form
    13,689,084.75/20,553,813.14 = 7,635,643.71/x
  3. Step 3: Cross multiply
    13,689,084.75x = 20,553,813.14 × 7,635,643.71
  4. Step 4: Simplify right side
    13,689,084.75x = 156,941,593,980,778.16
  5. Step 5: Solve for x
    x = 156,941,593,980,778.16/13,689,084.75
  6. Step 6: Final answer
    x = 11,464,725.13

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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.