Home / 813,977,039.43-1,220,973,115.14-231,711,263.82

Finding the Fourth Proportional to 813,977,039.43, 1,220,973,115.14 and 231,711,263.82

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Solution

The fourth proportional to 813,977,039.43, 1,220,973,115.14 and 231,711,263.82 is: 347,569,046.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,977,039.43 : 1,220,973,115.14 = 231,711,263.82 : x
  2. Step 2: Convert to fraction form
    813,977,039.43/1,220,973,115.14 = 231,711,263.82/x
  3. Step 3: Cross multiply
    813,977,039.43x = 1,220,973,115.14 × 231,711,263.82
  4. Step 4: Simplify right side
    813,977,039.43x = 282,913,223,599,331,776
  5. Step 5: Solve for x
    x = 282,913,223,599,331,776/813,977,039.43
  6. Step 6: Final answer
    x = 347,569,046.66

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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.