Home / 100,927,143.36-139,279,518.85-54,517,417.78

Finding the Fourth Proportional to 100,927,143.36, 139,279,518.85 and 54,517,417.78

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Solution

The fourth proportional to 100,927,143.36, 139,279,518.85 and 54,517,417.78 is: 75,234,069.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,927,143.36 : 139,279,518.85 = 54,517,417.78 : x
  2. Step 2: Convert to fraction form
    100,927,143.36/139,279,518.85 = 54,517,417.78/x
  3. Step 3: Cross multiply
    100,927,143.36x = 139,279,518.85 × 54,517,417.78
  4. Step 4: Simplify right side
    100,927,143.36x = 7,593,159,717,342,835
  5. Step 5: Solve for x
    x = 7,593,159,717,342,835/100,927,143.36
  6. Step 6: Final answer
    x = 75,234,069.49

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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.