Home / 386,086,684,881.28-532,799,712,103.90-212,471,824,332.74

Finding the Fourth Proportional to 386,086,684,881.28, 532,799,712,103.90 and 212,471,824,332.74

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Solution

The fourth proportional to 386,086,684,881.28, 532,799,712,103.90 and 212,471,824,332.74 is: 293,211,165,439.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,086,684,881.28 : 532,799,712,103.90 = 212,471,824,332.74 : x
  2. Step 2: Convert to fraction form
    386,086,684,881.28/532,799,712,103.90 = 212,471,824,332.74/x
  3. Step 3: Cross multiply
    386,086,684,881.28x = 532,799,712,103.90 × 212,471,824,332.74
  4. Step 4: Simplify right side
    386,086,684,881.28x = 113,204,926,834,674,291,965,952
  5. Step 5: Solve for x
    x = 113,204,926,834,674,291,965,952/386,086,684,881.28
  6. Step 6: Final answer
    x = 293,211,165,439.40

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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.