Home / 66,821,403.60-100,232,105.40-58,743,500.40

Finding the Fourth Proportional to 66,821,403.60, 100,232,105.40 and 58,743,500.40

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Solution

The fourth proportional to 66,821,403.60, 100,232,105.40 and 58,743,500.40 is: 88,115,250.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,821,403.60 : 100,232,105.40 = 58,743,500.40 : x
  2. Step 2: Convert to fraction form
    66,821,403.60/100,232,105.40 = 58,743,500.40/x
  3. Step 3: Cross multiply
    66,821,403.60x = 100,232,105.40 × 58,743,500.40
  4. Step 4: Simplify right side
    66,821,403.60x = 5,887,984,723,657,742
  5. Step 5: Solve for x
    x = 5,887,984,723,657,742/66,821,403.60
  6. Step 6: Final answer
    x = 88,115,250.60

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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.