Home / 12,127,549.20-18,198,322.20-4,555,280.40

Finding the Fourth Proportional to 12,127,549.20, 18,198,322.20 and 4,555,280.40

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Solution

The fourth proportional to 12,127,549.20, 18,198,322.20 and 4,555,280.40 is: 6,835,549.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127,549.20 : 18,198,322.20 = 4,555,280.40 : x
  2. Step 2: Convert to fraction form
    12,127,549.20/18,198,322.20 = 4,555,280.40/x
  3. Step 3: Cross multiply
    12,127,549.20x = 18,198,322.20 × 4,555,280.40
  4. Step 4: Simplify right side
    12,127,549.20x = 82,898,460,430,544.89
  5. Step 5: Solve for x
    x = 82,898,460,430,544.89/12,127,549.20
  6. Step 6: Final answer
    x = 6,835,549.30

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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.