Home / 492,034,257-679,021,446.42-272,031,854.76

Finding the Fourth Proportional to 492,034,257, 679,021,446.42 and 272,031,854.76

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Solution

The fourth proportional to 492,034,257, 679,021,446.42 and 272,031,854.76 is: 375,411,794.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,034,257 : 679,021,446.42 = 272,031,854.76 : x
  2. Step 2: Convert to fraction form
    492,034,257/679,021,446.42 = 272,031,854.76/x
  3. Step 3: Cross multiply
    492,034,257x = 679,021,446.42 × 272,031,854.76
  4. Step 4: Simplify right side
    492,034,257x = 184,715,463,491,450,528
  5. Step 5: Solve for x
    x = 184,715,463,491,450,528/492,034,257
  6. Step 6: Final answer
    x = 375,411,794.73

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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.