Home / 66,072,016.80-99,108,025.20-43,113,765.60

Finding the Fourth Proportional to 66,072,016.80, 99,108,025.20 and 43,113,765.60

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Solution

The fourth proportional to 66,072,016.80, 99,108,025.20 and 43,113,765.60 is: 64,670,648.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,072,016.80 : 99,108,025.20 = 43,113,765.60 : x
  2. Step 2: Convert to fraction form
    66,072,016.80/99,108,025.20 = 43,113,765.60/x
  3. Step 3: Cross multiply
    66,072,016.80x = 99,108,025.20 × 43,113,765.60
  4. Step 4: Simplify right side
    66,072,016.80x = 4,272,920,167,551,693.50
  5. Step 5: Solve for x
    x = 4,272,920,167,551,693.50/66,072,016.80
  6. Step 6: Final answer
    x = 64,670,648.40

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Double scale
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Similar ratio
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1.5x scale

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.