Home / 100,805,999.46-139,101,630.39-56,752,197.36

Finding the Fourth Proportional to 100,805,999.46, 139,101,630.39 and 56,752,197.36

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Solution

The fourth proportional to 100,805,999.46, 139,101,630.39 and 56,752,197.36 is: 78,312,037.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,805,999.46 : 139,101,630.39 = 56,752,197.36 : x
  2. Step 2: Convert to fraction form
    100,805,999.46/139,101,630.39 = 56,752,197.36/x
  3. Step 3: Cross multiply
    100,805,999.46x = 139,101,630.39 × 56,752,197.36
  4. Step 4: Simplify right side
    100,805,999.46x = 7,894,323,180,991,053
  5. Step 5: Solve for x
    x = 7,894,323,180,991,053/100,805,999.46
  6. Step 6: Final answer
    x = 78,312,037.21

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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.