Home / 639,705,817.13-959,558,725.69-155,031,625.13

Finding the Fourth Proportional to 639,705,817.13, 959,558,725.69 and 155,031,625.13

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Solution

The fourth proportional to 639,705,817.13, 959,558,725.69 and 155,031,625.13 is: 232,547,437.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,705,817.13 : 959,558,725.69 = 155,031,625.13 : x
  2. Step 2: Convert to fraction form
    639,705,817.13/959,558,725.69 = 155,031,625.13/x
  3. Step 3: Cross multiply
    639,705,817.13x = 959,558,725.69 × 155,031,625.13
  4. Step 4: Simplify right side
    639,705,817.13x = 148,761,948,646,207,200
  5. Step 5: Solve for x
    x = 148,761,948,646,207,200/639,705,817.13
  6. Step 6: Final answer
    x = 232,547,437.69

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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.