Home / 518,793,320.70-715,933,943.73-283,844,928.06

Finding the Fourth Proportional to 518,793,320.70, 715,933,943.73 and 283,844,928.06

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Solution

The fourth proportional to 518,793,320.70, 715,933,943.73 and 283,844,928.06 is: 391,705,541.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,793,320.70 : 715,933,943.73 = 283,844,928.06 : x
  2. Step 2: Convert to fraction form
    518,793,320.70/715,933,943.73 = 283,844,928.06/x
  3. Step 3: Cross multiply
    518,793,320.70x = 715,933,943.73 × 283,844,928.06
  4. Step 4: Simplify right side
    518,793,320.70x = 203,214,218,753,753,952
  5. Step 5: Solve for x
    x = 203,214,218,753,753,952/518,793,320.70
  6. Step 6: Final answer
    x = 391,705,541.77

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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.