Home / 321,248,229.78-443,458,162.80-216,967,548.27

Finding the Fourth Proportional to 321,248,229.78, 443,458,162.80 and 216,967,548.27

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Solution

The fourth proportional to 321,248,229.78, 443,458,162.80 and 216,967,548.27 is: 299,506,803.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,248,229.78 : 443,458,162.80 = 216,967,548.27 : x
  2. Step 2: Convert to fraction form
    321,248,229.78/443,458,162.80 = 216,967,548.27/x
  3. Step 3: Cross multiply
    321,248,229.78x = 443,458,162.80 × 216,967,548.27
  4. Step 4: Simplify right side
    321,248,229.78x = 96,216,030,343,034,528
  5. Step 5: Solve for x
    x = 96,216,030,343,034,528/321,248,229.78
  6. Step 6: Final answer
    x = 299,506,803.22

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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.