Home / 328,398,130.96-492,517,570.20-136,817,397.52

Finding the Fourth Proportional to 328,398,130.96, 492,517,570.20 and 136,817,397.52

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Solution

The fourth proportional to 328,398,130.96, 492,517,570.20 and 136,817,397.52 is: 205,192,922.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,398,130.96 : 492,517,570.20 = 136,817,397.52 : x
  2. Step 2: Convert to fraction form
    328,398,130.96/492,517,570.20 = 136,817,397.52/x
  3. Step 3: Cross multiply
    328,398,130.96x = 492,517,570.20 × 136,817,397.52
  4. Step 4: Simplify right side
    328,398,130.96x = 67,384,972,187,637,912
  5. Step 5: Solve for x
    x = 67,384,972,187,637,912/328,398,130.96
  6. Step 6: Final answer
    x = 205,192,922.36

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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.