Home / 721,797,114.51-996,053,345.96-391,765,167.63

Finding the Fourth Proportional to 721,797,114.51, 996,053,345.96 and 391,765,167.63

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Solution

The fourth proportional to 721,797,114.51, 996,053,345.96 and 391,765,167.63 is: 540,621,454.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,797,114.51 : 996,053,345.96 = 391,765,167.63 : x
  2. Step 2: Convert to fraction form
    721,797,114.51/996,053,345.96 = 391,765,167.63/x
  3. Step 3: Cross multiply
    721,797,114.51x = 996,053,345.96 × 391,765,167.63
  4. Step 4: Simplify right side
    721,797,114.51x = 390,219,006,046,482,944
  5. Step 5: Solve for x
    x = 390,219,006,046,482,944/721,797,114.51
  6. Step 6: Final answer
    x = 540,621,454.70

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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.