Home / 387,732,423.38-534,997,564.84-231,114,103.47

Finding the Fourth Proportional to 387,732,423.38, 534,997,564.84 and 231,114,103.47

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Solution

The fourth proportional to 387,732,423.38, 534,997,564.84 and 231,114,103.47 is: 318,893,843.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,732,423.38 : 534,997,564.84 = 231,114,103.47 : x
  2. Step 2: Convert to fraction form
    387,732,423.38/534,997,564.84 = 231,114,103.47/x
  3. Step 3: Cross multiply
    387,732,423.38x = 534,997,564.84 × 231,114,103.47
  4. Step 4: Simplify right side
    387,732,423.38x = 123,645,482,556,918,688
  5. Step 5: Solve for x
    x = 123,645,482,556,918,688/387,732,423.38
  6. Step 6: Final answer
    x = 318,893,843.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.