Home / 65,852,857.20-98,779,285.80-20,419,244.40

Finding the Fourth Proportional to 65,852,857.20, 98,779,285.80 and 20,419,244.40

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Solution

The fourth proportional to 65,852,857.20, 98,779,285.80 and 20,419,244.40 is: 30,628,866.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,852,857.20 : 98,779,285.80 = 20,419,244.40 : x
  2. Step 2: Convert to fraction form
    65,852,857.20/98,779,285.80 = 20,419,244.40/x
  3. Step 3: Cross multiply
    65,852,857.20x = 98,779,285.80 × 20,419,244.40
  4. Step 4: Simplify right side
    65,852,857.20x = 2,016,998,378,407,649.25
  5. Step 5: Solve for x
    x = 2,016,998,378,407,649.25/65,852,857.20
  6. Step 6: Final answer
    x = 30,628,866.60

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Similar ratio
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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.