Home / 261,152,221.80-391,280,435.10-124,543,453.80

Finding the Fourth Proportional to 261,152,221.80, 391,280,435.10 and 124,543,453.80

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Solution

The fourth proportional to 261,152,221.80, 391,280,435.10 and 124,543,453.80 is: 186,601,578.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,152,221.80 : 391,280,435.10 = 124,543,453.80 : x
  2. Step 2: Convert to fraction form
    261,152,221.80/391,280,435.10 = 124,543,453.80/x
  3. Step 3: Cross multiply
    261,152,221.80x = 391,280,435.10 × 124,543,453.80
  4. Step 4: Simplify right side
    261,152,221.80x = 48,731,416,791,720,752
  5. Step 5: Solve for x
    x = 48,731,416,791,720,752/261,152,221.80
  6. Step 6: Final answer
    x = 186,601,578.40

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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.