Home / 100,976,627.45-139,360,019.33-56,932,109.57

Finding the Fourth Proportional to 100,976,627.45, 139,360,019.33 and 56,932,109.57

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Solution

The fourth proportional to 100,976,627.45, 139,360,019.33 and 56,932,109.57 is: 78,573,231.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,976,627.45 : 139,360,019.33 = 56,932,109.57 : x
  2. Step 2: Convert to fraction form
    100,976,627.45/139,360,019.33 = 56,932,109.57/x
  3. Step 3: Cross multiply
    100,976,627.45x = 139,360,019.33 × 56,932,109.57
  4. Step 4: Simplify right side
    100,976,627.45x = 7,934,059,890,172,879
  5. Step 5: Solve for x
    x = 7,934,059,890,172,879/100,976,627.45
  6. Step 6: Final answer
    x = 78,573,231.16

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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.