Home / 31,136,781.68-42,968,502.06-17,007,979.78

Finding the Fourth Proportional to 31,136,781.68, 42,968,502.06 and 17,007,979.78

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Solution

The fourth proportional to 31,136,781.68, 42,968,502.06 and 17,007,979.78 is: 23,470,871.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,136,781.68 : 42,968,502.06 = 17,007,979.78 : x
  2. Step 2: Convert to fraction form
    31,136,781.68/42,968,502.06 = 17,007,979.78/x
  3. Step 3: Cross multiply
    31,136,781.68x = 42,968,502.06 × 17,007,979.78
  4. Step 4: Simplify right side
    31,136,781.68x = 730,807,414,213,368.50
  5. Step 5: Solve for x
    x = 730,807,414,213,368.50/31,136,781.68
  6. Step 6: Final answer
    x = 23,470,871.90

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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.