Home / 139,969,234.95-209,953,852.43-120,821,612.55

Finding the Fourth Proportional to 139,969,234.95, 209,953,852.43 and 120,821,612.55

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Solution

The fourth proportional to 139,969,234.95, 209,953,852.43 and 120,821,612.55 is: 181,232,418.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,969,234.95 : 209,953,852.43 = 120,821,612.55 : x
  2. Step 2: Convert to fraction form
    139,969,234.95/209,953,852.43 = 120,821,612.55/x
  3. Step 3: Cross multiply
    139,969,234.95x = 209,953,852.43 × 120,821,612.55
  4. Step 4: Simplify right side
    139,969,234.95x = 25,366,963,011,073,228
  5. Step 5: Solve for x
    x = 25,366,963,011,073,228/139,969,234.95
  6. Step 6: Final answer
    x = 181,232,418.83

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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.