Home / 12,261,601.80-18,392,402.70-9,391,820.40

Finding the Fourth Proportional to 12,261,601.80, 18,392,402.70 and 9,391,820.40

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Solution

The fourth proportional to 12,261,601.80, 18,392,402.70 and 9,391,820.40 is: 14,087,730.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,261,601.80 : 18,392,402.70 = 9,391,820.40 : x
  2. Step 2: Convert to fraction form
    12,261,601.80/18,392,402.70 = 9,391,820.40/x
  3. Step 3: Cross multiply
    12,261,601.80x = 18,392,402.70 × 9,391,820.40
  4. Step 4: Simplify right side
    12,261,601.80x = 172,738,142,882,875.09
  5. Step 5: Solve for x
    x = 172,738,142,882,875.09/12,261,601.80
  6. Step 6: Final answer
    x = 14,087,730.60

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1.5x scale

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.