Home / 74,871,151.20-112,306,726.80-21,011,464.80

Finding the Fourth Proportional to 74,871,151.20, 112,306,726.80 and 21,011,464.80

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Solution

The fourth proportional to 74,871,151.20, 112,306,726.80 and 21,011,464.80 is: 31,517,197.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,871,151.20 : 112,306,726.80 = 21,011,464.80 : x
  2. Step 2: Convert to fraction form
    74,871,151.20/112,306,726.80 = 21,011,464.80/x
  3. Step 3: Cross multiply
    74,871,151.20x = 112,306,726.80 × 21,011,464.80
  4. Step 4: Simplify right side
    74,871,151.20x = 2,359,728,836,961,416.50
  5. Step 5: Solve for x
    x = 2,359,728,836,961,416.50/74,871,151.20
  6. Step 6: Final answer
    x = 31,517,197.20

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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.