Home / 21,853,998.40-32,780,997.60-20,734,254.40

Finding the Fourth Proportional to 21,853,998.40, 32,780,997.60 and 20,734,254.40

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Solution

The fourth proportional to 21,853,998.40, 32,780,997.60 and 20,734,254.40 is: 31,101,381.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,853,998.40 : 32,780,997.60 = 20,734,254.40 : x
  2. Step 2: Convert to fraction form
    21,853,998.40/32,780,997.60 = 20,734,254.40/x
  3. Step 3: Cross multiply
    21,853,998.40x = 32,780,997.60 × 20,734,254.40
  4. Step 4: Simplify right side
    21,853,998.40x = 679,689,543,724,189.38
  5. Step 5: Solve for x
    x = 679,689,543,724,189.38/21,853,998.40
  6. Step 6: Final answer
    x = 31,101,381.60

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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.