Home / 83,001,515.40-124,455,617.10-31,885,201.80

Finding the Fourth Proportional to 83,001,515.40, 124,455,617.10 and 31,885,201.80

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Solution

The fourth proportional to 83,001,515.40, 124,455,617.10 and 31,885,201.80 is: 47,809,879.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,001,515.40 : 124,455,617.10 = 31,885,201.80 : x
  2. Step 2: Convert to fraction form
    83,001,515.40/124,455,617.10 = 31,885,201.80/x
  3. Step 3: Cross multiply
    83,001,515.40x = 124,455,617.10 × 31,885,201.80
  4. Step 4: Simplify right side
    83,001,515.40x = 3,968,292,466,377,030.50
  5. Step 5: Solve for x
    x = 3,968,292,466,377,030.50/83,001,515.40
  6. Step 6: Final answer
    x = 47,809,879.70

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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.