Home / 261,153,280.80-391,282,023.60-124,544,512.80

Finding the Fourth Proportional to 261,153,280.80, 391,282,023.60 and 124,544,512.80

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Solution

The fourth proportional to 261,153,280.80, 391,282,023.60 and 124,544,512.80 is: 186,603,165.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,153,280.80 : 391,282,023.60 = 124,544,512.80 : x
  2. Step 2: Convert to fraction form
    261,153,280.80/391,282,023.60 = 124,544,512.80/x
  3. Step 3: Cross multiply
    261,153,280.80x = 391,282,023.60 × 124,544,512.80
  4. Step 4: Simplify right side
    261,153,280.80x = 48,732,028,996,660,104
  5. Step 5: Solve for x
    x = 48,732,028,996,660,104/261,153,280.80
  6. Step 6: Final answer
    x = 186,603,165.95

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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.