Home / 425,591,846.20-638,387,769.30-152,990,169.40

Finding the Fourth Proportional to 425,591,846.20, 638,387,769.30 and 152,990,169.40

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Solution

The fourth proportional to 425,591,846.20, 638,387,769.30 and 152,990,169.40 is: 229,485,254.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,591,846.20 : 638,387,769.30 = 152,990,169.40 : x
  2. Step 2: Convert to fraction form
    425,591,846.20/638,387,769.30 = 152,990,169.40/x
  3. Step 3: Cross multiply
    425,591,846.20x = 638,387,769.30 × 152,990,169.40
  4. Step 4: Simplify right side
    425,591,846.20x = 97,667,052,968,095,120
  5. Step 5: Solve for x
    x = 97,667,052,968,095,120/425,591,846.20
  6. Step 6: Final answer
    x = 229,485,254.10

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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.