Home / 312,162,479.98-430,810,676.32-172,976,901.10

Finding the Fourth Proportional to 312,162,479.98, 430,810,676.32 and 172,976,901.10

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Solution

The fourth proportional to 312,162,479.98, 430,810,676.32 and 172,976,901.10 is: 238,722,782.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,162,479.98 : 430,810,676.32 = 172,976,901.10 : x
  2. Step 2: Convert to fraction form
    312,162,479.98/430,810,676.32 = 172,976,901.10/x
  3. Step 3: Cross multiply
    312,162,479.98x = 430,810,676.32 × 172,976,901.10
  4. Step 4: Simplify right side
    312,162,479.98x = 74,520,295,750,628,752
  5. Step 5: Solve for x
    x = 74,520,295,750,628,752/312,162,479.98
  6. Step 6: Final answer
    x = 238,722,782.30

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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.