Home / 139,163,147.42-192,039,882.14-77,287,471.79

Finding the Fourth Proportional to 139,163,147.42, 192,039,882.14 and 77,287,471.79

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Solution

The fourth proportional to 139,163,147.42, 192,039,882.14 and 77,287,471.79 is: 106,653,789.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,163,147.42 : 192,039,882.14 = 77,287,471.79 : x
  2. Step 2: Convert to fraction form
    139,163,147.42/192,039,882.14 = 77,287,471.79/x
  3. Step 3: Cross multiply
    139,163,147.42x = 192,039,882.14 × 77,287,471.79
  4. Step 4: Simplify right side
    139,163,147.42x = 14,842,276,973,063,738
  5. Step 5: Solve for x
    x = 14,842,276,973,063,738/139,163,147.42
  6. Step 6: Final answer
    x = 106,653,789.08

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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.