Home / 87,898,378.56-121,291,022.59-50,740,629.72

Finding the Fourth Proportional to 87,898,378.56, 121,291,022.59 and 50,740,629.72

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Solution

The fourth proportional to 87,898,378.56, 121,291,022.59 and 50,740,629.72 is: 70,017,023.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,898,378.56 : 121,291,022.59 = 50,740,629.72 : x
  2. Step 2: Convert to fraction form
    87,898,378.56/121,291,022.59 = 50,740,629.72/x
  3. Step 3: Cross multiply
    87,898,378.56x = 121,291,022.59 × 50,740,629.72
  4. Step 4: Simplify right side
    87,898,378.56x = 6,154,382,865,599,345
  5. Step 5: Solve for x
    x = 6,154,382,865,599,345/87,898,378.56
  6. Step 6: Final answer
    x = 70,017,023.82

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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.