Home / 90,162,720.86-124,424,594.44-51,003,659.66

Finding the Fourth Proportional to 90,162,720.86, 124,424,594.44 and 51,003,659.66

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Solution

The fourth proportional to 90,162,720.86, 124,424,594.44 and 51,003,659.66 is: 70,385,072.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,162,720.86 : 124,424,594.44 = 51,003,659.66 : x
  2. Step 2: Convert to fraction form
    90,162,720.86/124,424,594.44 = 51,003,659.66/x
  3. Step 3: Cross multiply
    90,162,720.86x = 124,424,594.44 × 51,003,659.66
  4. Step 4: Simplify right side
    90,162,720.86x = 6,346,109,667,401,656
  5. Step 5: Solve for x
    x = 6,346,109,667,401,656/90,162,720.86
  6. Step 6: Final answer
    x = 70,385,072.76

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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.