Home / 747,875,136.78-1,121,759,561.07-230,251,602.78

Finding the Fourth Proportional to 747,875,136.78, 1,121,759,561.07 and 230,251,602.78

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Solution

The fourth proportional to 747,875,136.78, 1,121,759,561.07 and 230,251,602.78 is: 345,361,042.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,875,136.78 : 1,121,759,561.07 = 230,251,602.78 : x
  2. Step 2: Convert to fraction form
    747,875,136.78/1,121,759,561.07 = 230,251,602.78/x
  3. Step 3: Cross multiply
    747,875,136.78x = 1,121,759,561.07 × 230,251,602.78
  4. Step 4: Simplify right side
    747,875,136.78x = 258,286,936,870,156,768
  5. Step 5: Solve for x
    x = 258,286,936,870,156,768/747,875,136.78
  6. Step 6: Final answer
    x = 345,361,042.46

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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.