Home / 498,844,398.02-688,375,691.05-275,808,574.83

Finding the Fourth Proportional to 498,844,398.02, 688,375,691.05 and 275,808,574.83

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Solution

The fourth proportional to 498,844,398.02, 688,375,691.05 and 275,808,574.83 is: 380,599,479.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,844,398.02 : 688,375,691.05 = 275,808,574.83 : x
  2. Step 2: Convert to fraction form
    498,844,398.02/688,375,691.05 = 275,808,574.83/x
  3. Step 3: Cross multiply
    498,844,398.02x = 688,375,691.05 × 275,808,574.83
  4. Step 4: Simplify right side
    498,844,398.02x = 189,859,918,297,746,784
  5. Step 5: Solve for x
    x = 189,859,918,297,746,784/498,844,398.02
  6. Step 6: Final answer
    x = 380,599,479.62

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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.