Home / 312,239,873.92-430,891,531.71-171,088,666.85

Finding the Fourth Proportional to 312,239,873.92, 430,891,531.71 and 171,088,666.85

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Solution

The fourth proportional to 312,239,873.92, 430,891,531.71 and 171,088,666.85 is: 236,102,637.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,239,873.92 : 430,891,531.71 = 171,088,666.85 : x
  2. Step 2: Convert to fraction form
    312,239,873.92/430,891,531.71 = 171,088,666.85/x
  3. Step 3: Cross multiply
    312,239,873.92x = 430,891,531.71 × 171,088,666.85
  4. Step 4: Simplify right side
    312,239,873.92x = 73,720,657,717,654,048
  5. Step 5: Solve for x
    x = 73,720,657,717,654,048/312,239,873.92
  6. Step 6: Final answer
    x = 236,102,637.35

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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.