Home / 420,832,309,908.02-580,791,872,793.33-256,045,527,732.78

Finding the Fourth Proportional to 420,832,309,908.02, 580,791,872,793.33 and 256,045,527,732.78

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Solution

The fourth proportional to 420,832,309,908.02, 580,791,872,793.33 and 256,045,527,732.78 is: 353,369,164,085.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,832,309,908.02 : 580,791,872,793.33 = 256,045,527,732.78 : x
  2. Step 2: Convert to fraction form
    420,832,309,908.02/580,791,872,793.33 = 256,045,527,732.78/x
  3. Step 3: Cross multiply
    420,832,309,908.02x = 580,791,872,793.33 × 256,045,527,732.78
  4. Step 4: Simplify right side
    420,832,309,908.02x = 148,709,161,572,277,795,422,208
  5. Step 5: Solve for x
    x = 148,709,161,572,277,795,422,208/420,832,309,908.02
  6. Step 6: Final answer
    x = 353,369,164,085.29

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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.