Home / 100,890,449.19-139,229,245.04-56,837,976.10

Finding the Fourth Proportional to 100,890,449.19, 139,229,245.04 and 56,837,976.10

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Solution

The fourth proportional to 100,890,449.19, 139,229,245.04 and 56,837,976.10 is: 78,436,646.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,890,449.19 : 139,229,245.04 = 56,837,976.10 : x
  2. Step 2: Convert to fraction form
    100,890,449.19/139,229,245.04 = 56,837,976.10/x
  3. Step 3: Cross multiply
    100,890,449.19x = 139,229,245.04 × 56,837,976.10
  4. Step 4: Simplify right side
    100,890,449.19x = 7,913,508,501,372,300
  5. Step 5: Solve for x
    x = 7,913,508,501,372,300/100,890,449.19
  6. Step 6: Final answer
    x = 78,436,646.53

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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.