Home / 154,168,868.40-212,752,040.76-88,109,571.12

Finding the Fourth Proportional to 154,168,868.40, 212,752,040.76 and 88,109,571.12

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Solution

The fourth proportional to 154,168,868.40, 212,752,040.76 and 88,109,571.12 is: 121,590,637.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,168,868.40 : 212,752,040.76 = 88,109,571.12 : x
  2. Step 2: Convert to fraction form
    154,168,868.40/212,752,040.76 = 88,109,571.12/x
  3. Step 3: Cross multiply
    154,168,868.40x = 212,752,040.76 × 88,109,571.12
  4. Step 4: Simplify right side
    154,168,868.40x = 18,745,491,066,268,360
  5. Step 5: Solve for x
    x = 18,745,491,066,268,360/154,168,868.40
  6. Step 6: Final answer
    x = 121,590,637.99

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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.