Home / 66,427,215.40-99,640,823.10-40,785,077.80

Finding the Fourth Proportional to 66,427,215.40, 99,640,823.10 and 40,785,077.80

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Solution

The fourth proportional to 66,427,215.40, 99,640,823.10 and 40,785,077.80 is: 61,177,616.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,427,215.40 : 99,640,823.10 = 40,785,077.80 : x
  2. Step 2: Convert to fraction form
    66,427,215.40/99,640,823.10 = 40,785,077.80/x
  3. Step 3: Cross multiply
    66,427,215.40x = 99,640,823.10 × 40,785,077.80
  4. Step 4: Simplify right side
    66,427,215.40x = 4,063,858,722,189,536.50
  5. Step 5: Solve for x
    x = 4,063,858,722,189,536.50/66,427,215.40
  6. Step 6: Final answer
    x = 61,177,616.70

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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.