Home / 81,420,109.92-112,360,619.76-44,250,390

Finding the Fourth Proportional to 81,420,109.92, 112,360,619.76 and 44,250,390

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Solution

The fourth proportional to 81,420,109.92, 112,360,619.76 and 44,250,390 is: 61,066,009.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,420,109.92 : 112,360,619.76 = 44,250,390 : x
  2. Step 2: Convert to fraction form
    81,420,109.92/112,360,619.76 = 44,250,390/x
  3. Step 3: Cross multiply
    81,420,109.92x = 112,360,619.76 × 44,250,390
  4. Step 4: Simplify right side
    81,420,109.92x = 4,972,001,245,021,707
  5. Step 5: Solve for x
    x = 4,972,001,245,021,707/81,420,109.92
  6. Step 6: Final answer
    x = 61,066,009.98

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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.