Home / 121,312,367.70-181,968,551.55-75,395,865.30

Finding the Fourth Proportional to 121,312,367.70, 181,968,551.55 and 75,395,865.30

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Solution

The fourth proportional to 121,312,367.70, 181,968,551.55 and 75,395,865.30 is: 113,093,797.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,312,367.70 : 181,968,551.55 = 75,395,865.30 : x
  2. Step 2: Convert to fraction form
    121,312,367.70/181,968,551.55 = 75,395,865.30/x
  3. Step 3: Cross multiply
    121,312,367.70x = 181,968,551.55 × 75,395,865.30
  4. Step 4: Simplify right side
    121,312,367.70x = 13,719,676,401,499,906
  5. Step 5: Solve for x
    x = 13,719,676,401,499,906/121,312,367.70
  6. Step 6: Final answer
    x = 113,093,797.95

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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.