Home / 280,292,764.88-386,747,916.36-156,514,396.88

Finding the Fourth Proportional to 280,292,764.88, 386,747,916.36 and 156,514,396.88

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Solution

The fourth proportional to 280,292,764.88, 386,747,916.36 and 156,514,396.88 is: 215,958,542.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,292,764.88 : 386,747,916.36 = 156,514,396.88 : x
  2. Step 2: Convert to fraction form
    280,292,764.88/386,747,916.36 = 156,514,396.88/x
  3. Step 3: Cross multiply
    280,292,764.88x = 386,747,916.36 × 156,514,396.88
  4. Step 4: Simplify right side
    280,292,764.88x = 60,531,616,873,682,088
  5. Step 5: Solve for x
    x = 60,531,616,873,682,088/280,292,764.88
  6. Step 6: Final answer
    x = 215,958,542.13

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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.