Home / 361,908,009.20-542,862,013.80-259,871,337.20

Finding the Fourth Proportional to 361,908,009.20, 542,862,013.80 and 259,871,337.20

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Solution

The fourth proportional to 361,908,009.20, 542,862,013.80 and 259,871,337.20 is: 389,807,005.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,908,009.20 : 542,862,013.80 = 259,871,337.20 : x
  2. Step 2: Convert to fraction form
    361,908,009.20/542,862,013.80 = 259,871,337.20/x
  3. Step 3: Cross multiply
    361,908,009.20x = 542,862,013.80 × 259,871,337.20
  4. Step 4: Simplify right side
    361,908,009.20x = 141,074,277,441,290,832
  5. Step 5: Solve for x
    x = 141,074,277,441,290,832/361,908,009.20
  6. Step 6: Final answer
    x = 389,807,005.80

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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.