Home / 12,281,306.60-18,421,787.10-5,549,709.80

Finding the Fourth Proportional to 12,281,306.60, 18,421,787.10 and 5,549,709.80

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Solution

The fourth proportional to 12,281,306.60, 18,421,787.10 and 5,549,709.80 is: 8,324,486.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,281,306.60 : 18,421,787.10 = 5,549,709.80 : x
  2. Step 2: Convert to fraction form
    12,281,306.60/18,421,787.10 = 5,549,709.80/x
  3. Step 3: Cross multiply
    12,281,306.60x = 18,421,787.10 × 5,549,709.80
  4. Step 4: Simplify right side
    12,281,306.60x = 102,235,572,402,383.58
  5. Step 5: Solve for x
    x = 102,235,572,402,383.58/12,281,306.60
  6. Step 6: Final answer
    x = 8,324,486.61

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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.