Home / 247,638,811.20-371,458,216.80-140,143,387.20

Finding the Fourth Proportional to 247,638,811.20, 371,458,216.80 and 140,143,387.20

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Solution

The fourth proportional to 247,638,811.20, 371,458,216.80 and 140,143,387.20 is: 210,215,080.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,638,811.20 : 371,458,216.80 = 140,143,387.20 : x
  2. Step 2: Convert to fraction form
    247,638,811.20/371,458,216.80 = 140,143,387.20/x
  3. Step 3: Cross multiply
    247,638,811.20x = 371,458,216.80 × 140,143,387.20
  4. Step 4: Simplify right side
    247,638,811.20x = 52,057,412,705,623,944
  5. Step 5: Solve for x
    x = 52,057,412,705,623,944/247,638,811.20
  6. Step 6: Final answer
    x = 210,215,080.80

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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.