Home / 257,472,407.20-385,910,012.40-104,017,712.80

Finding the Fourth Proportional to 257,472,407.20, 385,910,012.40 and 104,017,712.80

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Solution

The fourth proportional to 257,472,407.20, 385,910,012.40 and 104,017,712.80 is: 155,905,936.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,472,407.20 : 385,910,012.40 = 104,017,712.80 : x
  2. Step 2: Convert to fraction form
    257,472,407.20/385,910,012.40 = 104,017,712.80/x
  3. Step 3: Cross multiply
    257,472,407.20x = 385,910,012.40 × 104,017,712.80
  4. Step 4: Simplify right side
    257,472,407.20x = 40,141,476,836,467,632
  5. Step 5: Solve for x
    x = 40,141,476,836,467,632/257,472,407.20
  6. Step 6: Final answer
    x = 155,905,936.77

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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.