Home / 392,579,813.89-541,781,448.24-225,314,737.84

Finding the Fourth Proportional to 392,579,813.89, 541,781,448.24 and 225,314,737.84

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Solution

The fourth proportional to 392,579,813.89, 541,781,448.24 and 225,314,737.84 is: 310,946,565.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,579,813.89 : 541,781,448.24 = 225,314,737.84 : x
  2. Step 2: Convert to fraction form
    392,579,813.89/541,781,448.24 = 225,314,737.84/x
  3. Step 3: Cross multiply
    392,579,813.89x = 541,781,448.24 × 225,314,737.84
  4. Step 4: Simplify right side
    392,579,813.89x = 122,071,344,976,771,136
  5. Step 5: Solve for x
    x = 122,071,344,976,771,136/392,579,813.89
  6. Step 6: Final answer
    x = 310,946,565.92

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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.