Home / 315,589,713.87-435,514,395.21-176,360,475.78

Finding the Fourth Proportional to 315,589,713.87, 435,514,395.21 and 176,360,475.78

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Solution

The fourth proportional to 315,589,713.87, 435,514,395.21 and 176,360,475.78 is: 243,377,786.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,589,713.87 : 435,514,395.21 = 176,360,475.78 : x
  2. Step 2: Convert to fraction form
    315,589,713.87/435,514,395.21 = 176,360,475.78/x
  3. Step 3: Cross multiply
    315,589,713.87x = 435,514,395.21 × 176,360,475.78
  4. Step 4: Simplify right side
    315,589,713.87x = 76,807,525,948,274,544
  5. Step 5: Solve for x
    x = 76,807,525,948,274,544/315,589,713.87
  6. Step 6: Final answer
    x = 243,377,786.32

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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.