Home / 372,359,304.45-513,855,815.76-215,817,213.06

Finding the Fourth Proportional to 372,359,304.45, 513,855,815.76 and 215,817,213.06

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Solution

The fourth proportional to 372,359,304.45, 513,855,815.76 and 215,817,213.06 is: 297,827,739.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,359,304.45 : 513,855,815.76 = 215,817,213.06 : x
  2. Step 2: Convert to fraction form
    372,359,304.45/513,855,815.76 = 215,817,213.06/x
  3. Step 3: Cross multiply
    372,359,304.45x = 513,855,815.76 × 215,817,213.06
  4. Step 4: Simplify right side
    372,359,304.45x = 110,898,930,071,996,032
  5. Step 5: Solve for x
    x = 110,898,930,071,996,032/372,359,304.45
  6. Step 6: Final answer
    x = 297,827,739.89

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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.