Home / 1,215,691,398,670.80-1,823,472,874,151.50-398,756,535,821.65

Finding the Fourth Proportional to 1,215,691,398,670.80, 1,823,472,874,151.50 and 398,756,535,821.65

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Solution

The fourth proportional to 1,215,691,398,670.80, 1,823,472,874,151.50 and 398,756,535,821.65 is: 598,113,737,792.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,691,398,670.80 : 1,823,472,874,151.50 = 398,756,535,821.65 : x
  2. Step 2: Convert to fraction form
    1,215,691,398,670.80/1,823,472,874,151.50 = 398,756,535,821.65/x
  3. Step 3: Cross multiply
    1,215,691,398,670.80x = 1,823,472,874,151.50 × 398,756,535,821.65
  4. Step 4: Simplify right side
    1,215,691,398,670.80x = 727,121,726,461,399,720,263,680
  5. Step 5: Solve for x
    x = 727,121,726,461,399,720,263,680/1,215,691,398,670.80
  6. Step 6: Final answer
    x = 598,113,737,792.68

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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.