Home / 813,957,142.44-1,220,943,094.81-231,691,159.11

Finding the Fourth Proportional to 813,957,142.44, 1,220,943,094.81 and 231,691,159.11

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Solution

The fourth proportional to 813,957,142.44, 1,220,943,094.81 and 231,691,159.11 is: 347,538,839.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,957,142.44 : 1,220,943,094.81 = 231,691,159.11 : x
  2. Step 2: Convert to fraction form
    813,957,142.44/1,220,943,094.81 = 231,691,159.11/x
  3. Step 3: Cross multiply
    813,957,142.44x = 1,220,943,094.81 × 231,691,159.11
  4. Step 4: Simplify right side
    813,957,142.44x = 282,881,720,847,878,816
  5. Step 5: Solve for x
    x = 282,881,720,847,878,816/813,957,142.44
  6. Step 6: Final answer
    x = 347,538,839.70

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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.