Home / 18,389,234.12-25,376,205.15-10,129,118.58

Finding the Fourth Proportional to 18,389,234.12, 25,376,205.15 and 10,129,118.58

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Solution

The fourth proportional to 18,389,234.12, 25,376,205.15 and 10,129,118.58 is: 13,977,667.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,389,234.12 : 25,376,205.15 = 10,129,118.58 : x
  2. Step 2: Convert to fraction form
    18,389,234.12/25,376,205.15 = 10,129,118.58/x
  3. Step 3: Cross multiply
    18,389,234.12x = 25,376,205.15 × 10,129,118.58
  4. Step 4: Simplify right side
    18,389,234.12x = 257,038,591,074,756.69
  5. Step 5: Solve for x
    x = 257,038,591,074,756.69/18,389,234.12
  6. Step 6: Final answer
    x = 13,977,667.01

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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.