Home / 13,280,443.12-18,326,527.66-7,399,773.46

Finding the Fourth Proportional to 13,280,443.12, 18,326,527.66 and 7,399,773.46

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Solution

The fourth proportional to 13,280,443.12, 18,326,527.66 and 7,399,773.46 is: 10,211,417.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280,443.12 : 18,326,527.66 = 7,399,773.46 : x
  2. Step 2: Convert to fraction form
    13,280,443.12/18,326,527.66 = 7,399,773.46/x
  3. Step 3: Cross multiply
    13,280,443.12x = 18,326,527.66 × 7,399,773.46
  4. Step 4: Simplify right side
    13,280,443.12x = 135,612,152,992,423.91
  5. Step 5: Solve for x
    x = 135,612,152,992,423.91/13,280,443.12
  6. Step 6: Final answer
    x = 10,211,417.78

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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.