Home / 778,129,351.74-1,167,192,588.51-253,497,827.34

Finding the Fourth Proportional to 778,129,351.74, 1,167,192,588.51 and 253,497,827.34

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Solution

The fourth proportional to 778,129,351.74, 1,167,192,588.51 and 253,497,827.34 is: 380,246,272.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,129,351.74 : 1,167,192,588.51 = 253,497,827.34 : x
  2. Step 2: Convert to fraction form
    778,129,351.74/1,167,192,588.51 = 253,497,827.34/x
  3. Step 3: Cross multiply
    778,129,351.74x = 1,167,192,588.51 × 253,497,827.34
  4. Step 4: Simplify right side
    778,129,351.74x = 295,880,785,274,635,648
  5. Step 5: Solve for x
    x = 295,880,785,274,635,648/778,129,351.74
  6. Step 6: Final answer
    x = 380,246,272.18

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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.