Home / 66,427,078.70-99,640,618.05-52,990,150.70

Finding the Fourth Proportional to 66,427,078.70, 99,640,618.05 and 52,990,150.70

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Solution

The fourth proportional to 66,427,078.70, 99,640,618.05 and 52,990,150.70 is: 79,485,226.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,427,078.70 : 99,640,618.05 = 52,990,150.70 : x
  2. Step 2: Convert to fraction form
    66,427,078.70/99,640,618.05 = 52,990,150.70/x
  3. Step 3: Cross multiply
    66,427,078.70x = 99,640,618.05 × 52,990,150.70
  4. Step 4: Simplify right side
    66,427,078.70x = 5,279,971,366,310,640
  5. Step 5: Solve for x
    x = 5,279,971,366,310,640/66,427,078.70
  6. Step 6: Final answer
    x = 79,485,226.05

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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.