Home / 252,282,620.40-378,353,071.80-79,812,301.20

Finding the Fourth Proportional to 252,282,620.40, 378,353,071.80 and 79,812,301.20

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Solution

The fourth proportional to 252,282,620.40, 378,353,071.80 and 79,812,301.20 is: 119,696,034.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,282,620.40 : 378,353,071.80 = 79,812,301.20 : x
  2. Step 2: Convert to fraction form
    252,282,620.40/378,353,071.80 = 79,812,301.20/x
  3. Step 3: Cross multiply
    252,282,620.40x = 378,353,071.80 × 79,812,301.20
  4. Step 4: Simplify right side
    252,282,620.40x = 30,197,229,326,446,828
  5. Step 5: Solve for x
    x = 30,197,229,326,446,828/252,282,620.40
  6. Step 6: Final answer
    x = 119,696,034.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.