Home / 813,957,223.08-1,220,943,215.52-231,691,239.84

Finding the Fourth Proportional to 813,957,223.08, 1,220,943,215.52 and 231,691,239.84

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Solution

The fourth proportional to 813,957,223.08, 1,220,943,215.52 and 231,691,239.84 is: 347,538,960.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,957,223.08 : 1,220,943,215.52 = 231,691,239.84 : x
  2. Step 2: Convert to fraction form
    813,957,223.08/1,220,943,215.52 = 231,691,239.84/x
  3. Step 3: Cross multiply
    813,957,223.08x = 1,220,943,215.52 × 231,691,239.84
  4. Step 4: Simplify right side
    813,957,223.08x = 282,881,847,378,065,120
  5. Step 5: Solve for x
    x = 282,881,847,378,065,120/813,957,223.08
  6. Step 6: Final answer
    x = 347,538,960.72

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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.