Home / 908,305,979.38-1,253,462,731.82-490,618,263.82

Finding the Fourth Proportional to 908,305,979.38, 1,253,462,731.82 and 490,618,263.82

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Solution

The fourth proportional to 908,305,979.38, 1,253,462,731.82 and 490,618,263.82 is: 677,053,463.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,305,979.38 : 1,253,462,731.82 = 490,618,263.82 : x
  2. Step 2: Convert to fraction form
    908,305,979.38/1,253,462,731.82 = 490,618,263.82/x
  3. Step 3: Cross multiply
    908,305,979.38x = 1,253,462,731.82 × 490,618,263.82
  4. Step 4: Simplify right side
    908,305,979.38x = 614,971,709,248,602,624
  5. Step 5: Solve for x
    x = 614,971,709,248,602,624/908,305,979.38
  6. Step 6: Final answer
    x = 677,053,463.49

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1.5x scale

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.