Home / 103,647,356.52-143,033,406.30-56,605,074

Finding the Fourth Proportional to 103,647,356.52, 143,033,406.30 and 56,605,074

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Solution

The fourth proportional to 103,647,356.52, 143,033,406.30 and 56,605,074 is: 78,115,031.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,647,356.52 : 143,033,406.30 = 56,605,074 : x
  2. Step 2: Convert to fraction form
    103,647,356.52/143,033,406.30 = 56,605,074/x
  3. Step 3: Cross multiply
    103,647,356.52x = 143,033,406.30 × 56,605,074
  4. Step 4: Simplify right side
    103,647,356.52x = 8,096,416,548,083,567
  5. Step 5: Solve for x
    x = 8,096,416,548,083,567/103,647,356.52
  6. Step 6: Final answer
    x = 78,115,031.78

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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.