Home / 418,615,538-577,689,442.44-233,020,397.58

Finding the Fourth Proportional to 418,615,538, 577,689,442.44 and 233,020,397.58

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Solution

The fourth proportional to 418,615,538, 577,689,442.44 and 233,020,397.58 is: 321,568,148.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,615,538 : 577,689,442.44 = 233,020,397.58 : x
  2. Step 2: Convert to fraction form
    418,615,538/577,689,442.44 = 233,020,397.58/x
  3. Step 3: Cross multiply
    418,615,538x = 577,689,442.44 × 233,020,397.58
  4. Step 4: Simplify right side
    418,615,538x = 134,613,423,555,137,344
  5. Step 5: Solve for x
    x = 134,613,423,555,137,344/418,615,538
  6. Step 6: Final answer
    x = 321,568,148.66

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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.