Home / 152,255,514.78-210,112,822.80-82,640,909.88

Finding the Fourth Proportional to 152,255,514.78, 210,112,822.80 and 82,640,909.88

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Solution

The fourth proportional to 152,255,514.78, 210,112,822.80 and 82,640,909.88 is: 114,044,570.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,255,514.78 : 210,112,822.80 = 82,640,909.88 : x
  2. Step 2: Convert to fraction form
    152,255,514.78/210,112,822.80 = 82,640,909.88/x
  3. Step 3: Cross multiply
    152,255,514.78x = 210,112,822.80 × 82,640,909.88
  4. Step 4: Simplify right side
    152,255,514.78x = 17,363,914,853,647,210
  5. Step 5: Solve for x
    x = 17,363,914,853,647,210/152,255,514.78
  6. Step 6: Final answer
    x = 114,044,570.92

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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.