Home / 103,424,118.30-155,136,177.45-42,013,158.30

Finding the Fourth Proportional to 103,424,118.30, 155,136,177.45 and 42,013,158.30

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Solution

The fourth proportional to 103,424,118.30, 155,136,177.45 and 42,013,158.30 is: 63,019,737.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,424,118.30 : 155,136,177.45 = 42,013,158.30 : x
  2. Step 2: Convert to fraction form
    103,424,118.30/155,136,177.45 = 42,013,158.30/x
  3. Step 3: Cross multiply
    103,424,118.30x = 155,136,177.45 × 42,013,158.30
  4. Step 4: Simplify right side
    103,424,118.30x = 6,517,760,781,263,739
  5. Step 5: Solve for x
    x = 6,517,760,781,263,739/103,424,118.30
  6. Step 6: Final answer
    x = 63,019,737.45

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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.