Home / 312,094,053.32-430,689,785.54-172,873,783.08

Finding the Fourth Proportional to 312,094,053.32, 430,689,785.54 and 172,873,783.08

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Solution

The fourth proportional to 312,094,053.32, 430,689,785.54 and 172,873,783.08 is: 238,565,816.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,094,053.32 : 430,689,785.54 = 172,873,783.08 : x
  2. Step 2: Convert to fraction form
    312,094,053.32/430,689,785.54 = 172,873,783.08/x
  3. Step 3: Cross multiply
    312,094,053.32x = 430,689,785.54 × 172,873,783.08
  4. Step 4: Simplify right side
    312,094,053.32x = 74,454,972,560,213,696
  5. Step 5: Solve for x
    x = 74,454,972,560,213,696/312,094,053.32
  6. Step 6: Final answer
    x = 238,565,816.20

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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.