Home / 228,543,149.33-315,408,997.13-129,441,526.10

Finding the Fourth Proportional to 228,543,149.33, 315,408,997.13 and 129,441,526.10

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Solution

The fourth proportional to 228,543,149.33, 315,408,997.13 and 129,441,526.10 is: 178,640,322.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,543,149.33 : 315,408,997.13 = 129,441,526.10 : x
  2. Step 2: Convert to fraction form
    228,543,149.33/315,408,997.13 = 129,441,526.10/x
  3. Step 3: Cross multiply
    228,543,149.33x = 315,408,997.13 × 129,441,526.10
  4. Step 4: Simplify right side
    228,543,149.33x = 40,827,021,931,953,464
  5. Step 5: Solve for x
    x = 40,827,021,931,953,464/228,543,149.33
  6. Step 6: Final answer
    x = 178,640,322.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.