Home / 56,998,901.80-85,508,720.70-18,649,743.40

Finding the Fourth Proportional to 56,998,901.80, 85,508,720.70 and 18,649,743.40

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Solution

The fourth proportional to 56,998,901.80, 85,508,720.70 and 18,649,743.40 is: 27,978,007.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,998,901.80 : 85,508,720.70 = 18,649,743.40 : x
  2. Step 2: Convert to fraction form
    56,998,901.80/85,508,720.70 = 18,649,743.40/x
  3. Step 3: Cross multiply
    56,998,901.80x = 85,508,720.70 × 18,649,743.40
  4. Step 4: Simplify right side
    56,998,901.80x = 1,594,715,699,517,268.25
  5. Step 5: Solve for x
    x = 1,594,715,699,517,268.25/56,998,901.80
  6. Step 6: Final answer
    x = 27,978,007.46

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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.