Home / 518,613,882.12-777,922,151.78-211,905,995.00

Finding the Fourth Proportional to 518,613,882.12, 777,922,151.78 and 211,905,995.00

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Solution

The fourth proportional to 518,613,882.12, 777,922,151.78 and 211,905,995.00 is: 317,859,535.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,613,882.12 : 777,922,151.78 = 211,905,995.00 : x
  2. Step 2: Convert to fraction form
    518,613,882.12/777,922,151.78 = 211,905,995.00/x
  3. Step 3: Cross multiply
    518,613,882.12x = 777,922,151.78 × 211,905,995.00
  4. Step 4: Simplify right side
    518,613,882.12x = 164,846,367,602,122,080
  5. Step 5: Solve for x
    x = 164,846,367,602,122,080/518,613,882.12
  6. Step 6: Final answer
    x = 317,859,535.36

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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.