Home / 12,135,641.60-18,203,462.40-7,373,619.20

Finding the Fourth Proportional to 12,135,641.60, 18,203,462.40 and 7,373,619.20

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Solution

The fourth proportional to 12,135,641.60, 18,203,462.40 and 7,373,619.20 is: 11,060,428.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,135,641.60 : 18,203,462.40 = 7,373,619.20 : x
  2. Step 2: Convert to fraction form
    12,135,641.60/18,203,462.40 = 7,373,619.20/x
  3. Step 3: Cross multiply
    12,135,641.60x = 18,203,462.40 × 7,373,619.20
  4. Step 4: Simplify right side
    12,135,641.60x = 134,225,399,859,118.08
  5. Step 5: Solve for x
    x = 134,225,399,859,118.08/12,135,641.60
  6. Step 6: Final answer
    x = 11,060,428.80

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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.