Home / 862,165,890.30-1,293,248,835.45-499,368,834.30

Finding the Fourth Proportional to 862,165,890.30, 1,293,248,835.45 and 499,368,834.30

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Solution

The fourth proportional to 862,165,890.30, 1,293,248,835.45 and 499,368,834.30 is: 749,053,251.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,165,890.30 : 1,293,248,835.45 = 499,368,834.30 : x
  2. Step 2: Convert to fraction form
    862,165,890.30/1,293,248,835.45 = 499,368,834.30/x
  3. Step 3: Cross multiply
    862,165,890.30x = 1,293,248,835.45 × 499,368,834.30
  4. Step 4: Simplify right side
    862,165,890.30x = 645,808,163,418,499,072
  5. Step 5: Solve for x
    x = 645,808,163,418,499,072/862,165,890.30
  6. Step 6: Final answer
    x = 749,053,251.45

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.