Home / 202,129,322.40-303,193,983.60-99,872,200.80

Finding the Fourth Proportional to 202,129,322.40, 303,193,983.60 and 99,872,200.80

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Solution

The fourth proportional to 202,129,322.40, 303,193,983.60 and 99,872,200.80 is: 149,808,301.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,129,322.40 : 303,193,983.60 = 99,872,200.80 : x
  2. Step 2: Convert to fraction form
    202,129,322.40/303,193,983.60 = 99,872,200.80/x
  3. Step 3: Cross multiply
    202,129,322.40x = 303,193,983.60 × 99,872,200.80
  4. Step 4: Simplify right side
    202,129,322.40x = 30,280,650,411,451,108
  5. Step 5: Solve for x
    x = 30,280,650,411,451,108/202,129,322.40
  6. Step 6: Final answer
    x = 149,808,301.20

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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.