Home / 706,523,781.68-975,002,865.52-393,251,272.64

Finding the Fourth Proportional to 706,523,781.68, 975,002,865.52 and 393,251,272.64

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Solution

The fourth proportional to 706,523,781.68, 975,002,865.52 and 393,251,272.64 is: 542,686,782.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,523,781.68 : 975,002,865.52 = 393,251,272.64 : x
  2. Step 2: Convert to fraction form
    706,523,781.68/975,002,865.52 = 393,251,272.64/x
  3. Step 3: Cross multiply
    706,523,781.68x = 975,002,865.52 × 393,251,272.64
  4. Step 4: Simplify right side
    706,523,781.68x = 383,421,117,693,386,752
  5. Step 5: Solve for x
    x = 383,421,117,693,386,752/706,523,781.68
  6. Step 6: Final answer
    x = 542,686,782.29

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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.