Home / 13,543,478.64-18,690,539.40-7,432,125.84

Finding the Fourth Proportional to 13,543,478.64, 18,690,539.40 and 7,432,125.84

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Solution

The fourth proportional to 13,543,478.64, 18,690,539.40 and 7,432,125.84 is: 10,256,629.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,543,478.64 : 18,690,539.40 = 7,432,125.84 : x
  2. Step 2: Convert to fraction form
    13,543,478.64/18,690,539.40 = 7,432,125.84/x
  3. Step 3: Cross multiply
    13,543,478.64x = 18,690,539.40 × 7,432,125.84
  4. Step 4: Simplify right side
    13,543,478.64x = 138,910,440,838,278.08
  5. Step 5: Solve for x
    x = 138,910,440,838,278.08/13,543,478.64
  6. Step 6: Final answer
    x = 10,256,629.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.