Home / 390,677,353.20-539,114,948.51-231,914,262.44

Finding the Fourth Proportional to 390,677,353.20, 539,114,948.51 and 231,914,262.44

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Solution

The fourth proportional to 390,677,353.20, 539,114,948.51 and 231,914,262.44 is: 320,029,929.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,677,353.20 : 539,114,948.51 = 231,914,262.44 : x
  2. Step 2: Convert to fraction form
    390,677,353.20/539,114,948.51 = 231,914,262.44/x
  3. Step 3: Cross multiply
    390,677,353.20x = 539,114,948.51 × 231,914,262.44
  4. Step 4: Simplify right side
    390,677,353.20x = 125,028,445,654,263,440
  5. Step 5: Solve for x
    x = 125,028,445,654,263,440/390,677,353.20
  6. Step 6: Final answer
    x = 320,029,929.12

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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.