Home / 120,558,432.60-180,837,648.90-43,871,496.30

Finding the Fourth Proportional to 120,558,432.60, 180,837,648.90 and 43,871,496.30

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Solution

The fourth proportional to 120,558,432.60, 180,837,648.90 and 43,871,496.30 is: 65,807,244.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,558,432.60 : 180,837,648.90 = 43,871,496.30 : x
  2. Step 2: Convert to fraction form
    120,558,432.60/180,837,648.90 = 43,871,496.30/x
  3. Step 3: Cross multiply
    120,558,432.60x = 180,837,648.90 × 43,871,496.30
  4. Step 4: Simplify right side
    120,558,432.60x = 7,933,618,244,617,049
  5. Step 5: Solve for x
    x = 7,933,618,244,617,049/120,558,432.60
  6. Step 6: Final answer
    x = 65,807,244.45

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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.