Home / 28,741,176.12-43,123,602.90-21,103,822.20

Finding the Fourth Proportional to 28,741,176.12, 43,123,602.90 and 21,103,822.20

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Solution

The fourth proportional to 28,741,176.12, 43,123,602.90 and 21,103,822.20 is: 31,664,426.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,741,176.12 : 43,123,602.90 = 21,103,822.20 : x
  2. Step 2: Convert to fraction form
    28,741,176.12/43,123,602.90 = 21,103,822.20/x
  3. Step 3: Cross multiply
    28,741,176.12x = 43,123,602.90 × 21,103,822.20
  4. Step 4: Simplify right side
    28,741,176.12x = 910,072,848,225,004.38
  5. Step 5: Solve for x
    x = 910,072,848,225,004.38/28,741,176.12
  6. Step 6: Final answer
    x = 31,664,426.13

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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.