Home / 18,087,130.20-27,130,695.30-12,347,567.40

Finding the Fourth Proportional to 18,087,130.20, 27,130,695.30 and 12,347,567.40

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Solution

The fourth proportional to 18,087,130.20, 27,130,695.30 and 12,347,567.40 is: 18,521,351.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,087,130.20 : 27,130,695.30 = 12,347,567.40 : x
  2. Step 2: Convert to fraction form
    18,087,130.20/27,130,695.30 = 12,347,567.40/x
  3. Step 3: Cross multiply
    18,087,130.20x = 27,130,695.30 × 12,347,567.40
  4. Step 4: Simplify right side
    18,087,130.20x = 334,998,088,825,613.25
  5. Step 5: Solve for x
    x = 334,998,088,825,613.25/18,087,130.20
  6. Step 6: Final answer
    x = 18,521,351.10

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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.