Home / 158,136,053.80-218,307,003.78-99,431,012.20

Finding the Fourth Proportional to 158,136,053.80, 218,307,003.78 and 99,431,012.20

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Solution

The fourth proportional to 158,136,053.80, 218,307,003.78 and 99,431,012.20 is: 137,264,626.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,136,053.80 : 218,307,003.78 = 99,431,012.20 : x
  2. Step 2: Convert to fraction form
    158,136,053.80/218,307,003.78 = 99,431,012.20/x
  3. Step 3: Cross multiply
    158,136,053.80x = 218,307,003.78 × 99,431,012.20
  4. Step 4: Simplify right side
    158,136,053.80x = 21,706,486,356,194,628
  5. Step 5: Solve for x
    x = 21,706,486,356,194,628/158,136,053.80
  6. Step 6: Final answer
    x = 137,264,626.47

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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.