Home / 361,908,003.70-542,862,005.55-259,871,331.70

Finding the Fourth Proportional to 361,908,003.70, 542,862,005.55 and 259,871,331.70

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Solution

The fourth proportional to 361,908,003.70, 542,862,005.55 and 259,871,331.70 is: 389,806,997.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,908,003.70 : 542,862,005.55 = 259,871,331.70 : x
  2. Step 2: Convert to fraction form
    361,908,003.70/542,862,005.55 = 259,871,331.70/x
  3. Step 3: Cross multiply
    361,908,003.70x = 542,862,005.55 × 259,871,331.70
  4. Step 4: Simplify right side
    361,908,003.70x = 141,074,272,311,611,280
  5. Step 5: Solve for x
    x = 141,074,272,311,611,280/361,908,003.70
  6. Step 6: Final answer
    x = 389,806,997.55

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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.