Home / 105,401,067.89-145,458,019.08-58,358,142.29

Finding the Fourth Proportional to 105,401,067.89, 145,458,019.08 and 58,358,142.29

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Solution

The fourth proportional to 105,401,067.89, 145,458,019.08 and 58,358,142.29 is: 80,536,753.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,401,067.89 : 145,458,019.08 = 58,358,142.29 : x
  2. Step 2: Convert to fraction form
    105,401,067.89/145,458,019.08 = 58,358,142.29/x
  3. Step 3: Cross multiply
    105,401,067.89x = 145,458,019.08 × 58,358,142.29
  4. Step 4: Simplify right side
    105,401,067.89x = 8,488,659,775,055,820
  5. Step 5: Solve for x
    x = 8,488,659,775,055,820/105,401,067.89
  6. Step 6: Final answer
    x = 80,536,753.05

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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.