Home / 13,280,447.12-18,326,533.18-7,399,777.46

Finding the Fourth Proportional to 13,280,447.12, 18,326,533.18 and 7,399,777.46

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Solution

The fourth proportional to 13,280,447.12, 18,326,533.18 and 7,399,777.46 is: 10,211,423.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280,447.12 : 18,326,533.18 = 7,399,777.46 : x
  2. Step 2: Convert to fraction form
    13,280,447.12/18,326,533.18 = 7,399,777.46/x
  3. Step 3: Cross multiply
    13,280,447.12x = 18,326,533.18 × 7,399,777.46
  4. Step 4: Simplify right side
    13,280,447.12x = 135,612,267,145,306.12
  5. Step 5: Solve for x
    x = 135,612,267,145,306.12/13,280,447.12
  6. Step 6: Final answer
    x = 10,211,423.30

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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.