Home / 212,049,456.40-318,074,184.60-171,738,672.40

Finding the Fourth Proportional to 212,049,456.40, 318,074,184.60 and 171,738,672.40

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Solution

The fourth proportional to 212,049,456.40, 318,074,184.60 and 171,738,672.40 is: 257,608,008.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,049,456.40 : 318,074,184.60 = 171,738,672.40 : x
  2. Step 2: Convert to fraction form
    212,049,456.40/318,074,184.60 = 171,738,672.40/x
  3. Step 3: Cross multiply
    212,049,456.40x = 318,074,184.60 × 171,738,672.40
  4. Step 4: Simplify right side
    212,049,456.40x = 54,625,638,187,916,528
  5. Step 5: Solve for x
    x = 54,625,638,187,916,528/212,049,456.40
  6. Step 6: Final answer
    x = 257,608,008.60

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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.