Home / 18,144,335.08-25,004,730.90-12,978,728.20

Finding the Fourth Proportional to 18,144,335.08, 25,004,730.90 and 12,978,728.20

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Solution

The fourth proportional to 18,144,335.08, 25,004,730.90 and 12,978,728.20 is: 17,886,001.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,144,335.08 : 25,004,730.90 = 12,978,728.20 : x
  2. Step 2: Convert to fraction form
    18,144,335.08/25,004,730.90 = 12,978,728.20/x
  3. Step 3: Cross multiply
    18,144,335.08x = 25,004,730.90 × 12,978,728.20
  4. Step 4: Simplify right side
    18,144,335.08x = 324,529,606,065,241.31
  5. Step 5: Solve for x
    x = 324,529,606,065,241.31/18,144,335.08
  6. Step 6: Final answer
    x = 17,886,001.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.