Home / 557,302,422.47-769,031,856.45-328,121,021.12

Finding the Fourth Proportional to 557,302,422.47, 769,031,856.45 and 328,121,021.12

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Solution

The fourth proportional to 557,302,422.47, 769,031,856.45 and 328,121,021.12 is: 452,780,228.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,302,422.47 : 769,031,856.45 = 328,121,021.12 : x
  2. Step 2: Convert to fraction form
    557,302,422.47/769,031,856.45 = 328,121,021.12/x
  3. Step 3: Cross multiply
    557,302,422.47x = 769,031,856.45 × 328,121,021.12
  4. Step 4: Simplify right side
    557,302,422.47x = 252,335,518,008,338,112
  5. Step 5: Solve for x
    x = 252,335,518,008,338,112/557,302,422.47
  6. Step 6: Final answer
    x = 452,780,228.18

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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.