Home / 320,849,191,971.20-481,273,787,956.80-172,079,724,195.20

Finding the Fourth Proportional to 320,849,191,971.20, 481,273,787,956.80 and 172,079,724,195.20

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Solution

The fourth proportional to 320,849,191,971.20, 481,273,787,956.80 and 172,079,724,195.20 is: 258,119,586,292.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,849,191,971.20 : 481,273,787,956.80 = 172,079,724,195.20 : x
  2. Step 2: Convert to fraction form
    320,849,191,971.20/481,273,787,956.80 = 172,079,724,195.20/x
  3. Step 3: Cross multiply
    320,849,191,971.20x = 481,273,787,956.80 × 172,079,724,195.20
  4. Step 4: Simplify right side
    320,849,191,971.20x = 82,817,460,693,985,310,801,920
  5. Step 5: Solve for x
    x = 82,817,460,693,985,310,801,920/320,849,191,971.20
  6. Step 6: Final answer
    x = 258,119,586,292.80

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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.