Home / 199,479,075.39-275,374,426.05-115,830,912.62

Finding the Fourth Proportional to 199,479,075.39, 275,374,426.05 and 115,830,912.62

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Solution

The fourth proportional to 199,479,075.39, 275,374,426.05 and 115,830,912.62 is: 159,900,836.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,479,075.39 : 275,374,426.05 = 115,830,912.62 : x
  2. Step 2: Convert to fraction form
    199,479,075.39/275,374,426.05 = 115,830,912.62/x
  3. Step 3: Cross multiply
    199,479,075.39x = 275,374,426.05 × 115,830,912.62
  4. Step 4: Simplify right side
    199,479,075.39x = 31,896,871,080,203,328
  5. Step 5: Solve for x
    x = 31,896,871,080,203,328/199,479,075.39
  6. Step 6: Final answer
    x = 159,900,836.81

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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.