Home / 518,412,752.29-777,619,876.83-211,704,865.17

Finding the Fourth Proportional to 518,412,752.29, 777,619,876.83 and 211,704,865.17

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Solution

The fourth proportional to 518,412,752.29, 777,619,876.83 and 211,704,865.17 is: 317,557,603.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,412,752.29 : 777,619,876.83 = 211,704,865.17 : x
  2. Step 2: Convert to fraction form
    518,412,752.29/777,619,876.83 = 211,704,865.17/x
  3. Step 3: Cross multiply
    518,412,752.29x = 777,619,876.83 × 211,704,865.17
  4. Step 4: Simplify right side
    518,412,752.29x = 164,625,911,174,097,184
  5. Step 5: Solve for x
    x = 164,625,911,174,097,184/518,412,752.29
  6. Step 6: Final answer
    x = 317,557,603.37

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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.