Home / 868,645,192.32-1,302,956,416.08-213,601,872.96

Finding the Fourth Proportional to 868,645,192.32, 1,302,956,416.08 and 213,601,872.96

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Solution

The fourth proportional to 868,645,192.32, 1,302,956,416.08 and 213,601,872.96 is: 320,400,012.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,645,192.32 : 1,302,956,416.08 = 213,601,872.96 : x
  2. Step 2: Convert to fraction form
    868,645,192.32/1,302,956,416.08 = 213,601,872.96/x
  3. Step 3: Cross multiply
    868,645,192.32x = 1,302,956,416.08 × 213,601,872.96
  4. Step 4: Simplify right side
    868,645,192.32x = 278,313,930,859,937,056
  5. Step 5: Solve for x
    x = 278,313,930,859,937,056/868,645,192.32
  6. Step 6: Final answer
    x = 320,400,012.94

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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.