Home / 66,568,985.60-99,853,478.40-55,819,443.20

Finding the Fourth Proportional to 66,568,985.60, 99,853,478.40 and 55,819,443.20

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Solution

The fourth proportional to 66,568,985.60, 99,853,478.40 and 55,819,443.20 is: 83,729,164.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,568,985.60 : 99,853,478.40 = 55,819,443.20 : x
  2. Step 2: Convert to fraction form
    66,568,985.60/99,853,478.40 = 55,819,443.20/x
  3. Step 3: Cross multiply
    66,568,985.60x = 99,853,478.40 × 55,819,443.20
  4. Step 4: Simplify right side
    66,568,985.60x = 5,573,765,565,871,228
  5. Step 5: Solve for x
    x = 5,573,765,565,871,228/66,568,985.60
  6. Step 6: Final answer
    x = 83,729,164.80

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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.