Home / 100,927,142.85-139,279,518.15-54,517,417.28

Finding the Fourth Proportional to 100,927,142.85, 139,279,518.15 and 54,517,417.28

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Solution

The fourth proportional to 100,927,142.85, 139,279,518.15 and 54,517,417.28 is: 75,234,068.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,927,142.85 : 139,279,518.15 = 54,517,417.28 : x
  2. Step 2: Convert to fraction form
    100,927,142.85/139,279,518.15 = 54,517,417.28/x
  3. Step 3: Cross multiply
    100,927,142.85x = 139,279,518.15 × 54,517,417.28
  4. Step 4: Simplify right side
    100,927,142.85x = 7,593,159,609,540,884
  5. Step 5: Solve for x
    x = 7,593,159,609,540,884/100,927,142.85
  6. Step 6: Final answer
    x = 75,234,068.81

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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.