Home / 312,422,503.96-431,146,983.90-180,290,918.62

Finding the Fourth Proportional to 312,422,503.96, 431,146,983.90 and 180,290,918.62

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Solution

The fourth proportional to 312,422,503.96, 431,146,983.90 and 180,290,918.62 is: 248,803,734.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,422,503.96 : 431,146,983.90 = 180,290,918.62 : x
  2. Step 2: Convert to fraction form
    312,422,503.96/431,146,983.90 = 180,290,918.62/x
  3. Step 3: Cross multiply
    312,422,503.96x = 431,146,983.90 × 180,290,918.62
  4. Step 4: Simplify right side
    312,422,503.96x = 77,731,885,787,573,344
  5. Step 5: Solve for x
    x = 77,731,885,787,573,344/312,422,503.96
  6. Step 6: Final answer
    x = 248,803,734.69

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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.