Home / 462,981,769.31-638,915,541.39-251,288,675.93

Finding the Fourth Proportional to 462,981,769.31, 638,915,541.39 and 251,288,675.93

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Solution

The fourth proportional to 462,981,769.31, 638,915,541.39 and 251,288,675.93 is: 346,778,752.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,981,769.31 : 638,915,541.39 = 251,288,675.93 : x
  2. Step 2: Convert to fraction form
    462,981,769.31/638,915,541.39 = 251,288,675.93/x
  3. Step 3: Cross multiply
    462,981,769.31x = 638,915,541.39 × 251,288,675.93
  4. Step 4: Simplify right side
    462,981,769.31x = 160,552,240,428,589,504
  5. Step 5: Solve for x
    x = 160,552,240,428,589,504/462,981,769.31
  6. Step 6: Final answer
    x = 346,778,752.58

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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.