Home / 154,530,432.84-213,253,694.64-84,915,831.72

Finding the Fourth Proportional to 154,530,432.84, 213,253,694.64 and 84,915,831.72

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Solution

The fourth proportional to 154,530,432.84, 213,253,694.64 and 84,915,831.72 is: 117,184,780.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,530,432.84 : 213,253,694.64 = 84,915,831.72 : x
  2. Step 2: Convert to fraction form
    154,530,432.84/213,253,694.64 = 84,915,831.72/x
  3. Step 3: Cross multiply
    154,530,432.84x = 213,253,694.64 × 84,915,831.72
  4. Step 4: Simplify right side
    154,530,432.84x = 18,108,614,847,718,504
  5. Step 5: Solve for x
    x = 18,108,614,847,718,504/154,530,432.84
  6. Step 6: Final answer
    x = 117,184,780.47

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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.