Home / 687,255,104.40-948,423,459.24-374,002,521.36

Finding the Fourth Proportional to 687,255,104.40, 948,423,459.24 and 374,002,521.36

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Solution

The fourth proportional to 687,255,104.40, 948,423,459.24 and 374,002,521.36 is: 516,129,691.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,255,104.40 : 948,423,459.24 = 374,002,521.36 : x
  2. Step 2: Convert to fraction form
    687,255,104.40/948,423,459.24 = 374,002,521.36/x
  3. Step 3: Cross multiply
    687,255,104.40x = 948,423,459.24 × 374,002,521.36
  4. Step 4: Simplify right side
    687,255,104.40x = 354,712,765,072,733,184
  5. Step 5: Solve for x
    x = 354,712,765,072,733,184/687,255,104.40
  6. Step 6: Final answer
    x = 516,129,691.58

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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.