Home / 528,408,023.10-792,612,034.65-392,359,127.10

Finding the Fourth Proportional to 528,408,023.10, 792,612,034.65 and 392,359,127.10

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Solution

The fourth proportional to 528,408,023.10, 792,612,034.65 and 392,359,127.10 is: 588,538,690.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,408,023.10 : 792,612,034.65 = 392,359,127.10 : x
  2. Step 2: Convert to fraction form
    528,408,023.10/792,612,034.65 = 392,359,127.10/x
  3. Step 3: Cross multiply
    528,408,023.10x = 792,612,034.65 × 392,359,127.10
  4. Step 4: Simplify right side
    528,408,023.10x = 310,988,566,044,228,992
  5. Step 5: Solve for x
    x = 310,988,566,044,228,992/528,408,023.10
  6. Step 6: Final answer
    x = 588,538,690.65

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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.