Home / 81,653,531.40-122,480,297.10-61,498,139.40

Finding the Fourth Proportional to 81,653,531.40, 122,480,297.10 and 61,498,139.40

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Solution

The fourth proportional to 81,653,531.40, 122,480,297.10 and 61,498,139.40 is: 92,247,209.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,653,531.40 : 122,480,297.10 = 61,498,139.40 : x
  2. Step 2: Convert to fraction form
    81,653,531.40/122,480,297.10 = 61,498,139.40/x
  3. Step 3: Cross multiply
    81,653,531.40x = 122,480,297.10 × 61,498,139.40
  4. Step 4: Simplify right side
    81,653,531.40x = 7,532,310,384,809,215
  5. Step 5: Solve for x
    x = 7,532,310,384,809,215/81,653,531.40
  6. Step 6: Final answer
    x = 92,247,209.10

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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.