Home / 18,389,220.62-25,376,186.55-10,129,105.08

Finding the Fourth Proportional to 18,389,220.62, 25,376,186.55 and 10,129,105.08

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Solution

The fourth proportional to 18,389,220.62, 25,376,186.55 and 10,129,105.08 is: 13,977,648.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,389,220.62 : 25,376,186.55 = 10,129,105.08 : x
  2. Step 2: Convert to fraction form
    18,389,220.62/25,376,186.55 = 10,129,105.08/x
  3. Step 3: Cross multiply
    18,389,220.62x = 25,376,186.55 × 10,129,105.08
  4. Step 4: Simplify right side
    18,389,220.62x = 257,038,060,132,616.84
  5. Step 5: Solve for x
    x = 257,038,060,132,616.84/18,389,220.62
  6. Step 6: Final answer
    x = 13,977,648.40

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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.