Home / 687,492,607.55-948,762,714.88-386,131,026.11

Finding the Fourth Proportional to 687,492,607.55, 948,762,714.88 and 386,131,026.11

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Solution

The fourth proportional to 687,492,607.55, 948,762,714.88 and 386,131,026.11 is: 532,873,687.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,492,607.55 : 948,762,714.88 = 386,131,026.11 : x
  2. Step 2: Convert to fraction form
    687,492,607.55/948,762,714.88 = 386,131,026.11/x
  3. Step 3: Cross multiply
    687,492,607.55x = 948,762,714.88 × 386,131,026.11
  4. Step 4: Simplify right side
    687,492,607.55x = 366,346,720,625,814,656
  5. Step 5: Solve for x
    x = 366,346,720,625,814,656/687,492,607.55
  6. Step 6: Final answer
    x = 532,873,687.08

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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.