Home / 149,013,979.40-223,776,021.90-80,989,531.40

Finding the Fourth Proportional to 149,013,979.40, 223,776,021.90 and 80,989,531.40

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Solution

The fourth proportional to 149,013,979.40, 223,776,021.90 and 80,989,531.40 is: 121,622,919.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,013,979.40 : 223,776,021.90 = 80,989,531.40 : x
  2. Step 2: Convert to fraction form
    149,013,979.40/223,776,021.90 = 80,989,531.40/x
  3. Step 3: Cross multiply
    149,013,979.40x = 223,776,021.90 × 80,989,531.40
  4. Step 4: Simplify right side
    149,013,979.40x = 18,123,515,152,237,140
  5. Step 5: Solve for x
    x = 18,123,515,152,237,140/149,013,979.40
  6. Step 6: Final answer
    x = 121,622,919.04

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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.