Home / 312,094,001.91-430,689,714.78-172,873,731.76

Finding the Fourth Proportional to 312,094,001.91, 430,689,714.78 and 172,873,731.76

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Solution

The fourth proportional to 312,094,001.91, 430,689,714.78 and 172,873,731.76 is: 238,565,745.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,094,001.91 : 430,689,714.78 = 172,873,731.76 : x
  2. Step 2: Convert to fraction form
    312,094,001.91/430,689,714.78 = 172,873,731.76/x
  3. Step 3: Cross multiply
    312,094,001.91x = 430,689,714.78 × 172,873,731.76
  4. Step 4: Simplify right side
    312,094,001.91x = 74,454,938,224,668,624
  5. Step 5: Solve for x
    x = 74,454,938,224,668,624/312,094,001.91
  6. Step 6: Final answer
    x = 238,565,745.48

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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.