Home / 870,187,123.45-1,305,280,685.18-295,758,451.45

Finding the Fourth Proportional to 870,187,123.45, 1,305,280,685.18 and 295,758,451.45

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Solution

The fourth proportional to 870,187,123.45, 1,305,280,685.18 and 295,758,451.45 is: 443,637,677.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,187,123.45 : 1,305,280,685.18 = 295,758,451.45 : x
  2. Step 2: Convert to fraction form
    870,187,123.45/1,305,280,685.18 = 295,758,451.45/x
  3. Step 3: Cross multiply
    870,187,123.45x = 1,305,280,685.18 × 295,758,451.45
  4. Step 4: Simplify right side
    870,187,123.45x = 386,047,794,156,431,744
  5. Step 5: Solve for x
    x = 386,047,794,156,431,744/870,187,123.45
  6. Step 6: Final answer
    x = 443,637,677.18

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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.