Home / 508,004,885.16-762,005,845.35-139,540,189.29

Finding the Fourth Proportional to 508,004,885.16, 762,005,845.35 and 139,540,189.29

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Solution

The fourth proportional to 508,004,885.16, 762,005,845.35 and 139,540,189.29 is: 209,309,876.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,004,885.16 : 762,005,845.35 = 139,540,189.29 : x
  2. Step 2: Convert to fraction form
    508,004,885.16/762,005,845.35 = 139,540,189.29/x
  3. Step 3: Cross multiply
    508,004,885.16x = 762,005,845.35 × 139,540,189.29
  4. Step 4: Simplify right side
    508,004,885.16x = 106,330,439,900,225,456
  5. Step 5: Solve for x
    x = 106,330,439,900,225,456/508,004,885.16
  6. Step 6: Final answer
    x = 209,309,876.75

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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.