Home / 228,543,254.98-315,409,142.76-129,441,631.78

Finding the Fourth Proportional to 228,543,254.98, 315,409,142.76 and 129,441,631.78

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Solution

The fourth proportional to 228,543,254.98, 315,409,142.76 and 129,441,631.78 is: 178,640,468.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,543,254.98 : 315,409,142.76 = 129,441,631.78 : x
  2. Step 2: Convert to fraction form
    228,543,254.98/315,409,142.76 = 129,441,631.78/x
  3. Step 3: Cross multiply
    228,543,254.98x = 315,409,142.76 × 129,441,631.78
  4. Step 4: Simplify right side
    228,543,254.98x = 40,827,074,117,185,376
  5. Step 5: Solve for x
    x = 40,827,074,117,185,376/228,543,254.98
  6. Step 6: Final answer
    x = 178,640,468.39

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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.