Home / 78,066,407.01-107,731,351.49-43,259,069.87

Finding the Fourth Proportional to 78,066,407.01, 107,731,351.49 and 43,259,069.87

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Solution

The fourth proportional to 78,066,407.01, 107,731,351.49 and 43,259,069.87 is: 59,697,355.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,066,407.01 : 107,731,351.49 = 43,259,069.87 : x
  2. Step 2: Convert to fraction form
    78,066,407.01/107,731,351.49 = 43,259,069.87/x
  3. Step 3: Cross multiply
    78,066,407.01x = 107,731,351.49 × 43,259,069.87
  4. Step 4: Simplify right side
    78,066,407.01x = 4,660,358,060,540,487
  5. Step 5: Solve for x
    x = 4,660,358,060,540,487/78,066,407.01
  6. Step 6: Final answer
    x = 59,697,355.61

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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.