Home / 77,213,362.58-115,819,950.92-19,705,639.89

Finding the Fourth Proportional to 77,213,362.58, 115,819,950.92 and 19,705,639.89

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Solution

The fourth proportional to 77,213,362.58, 115,819,950.92 and 19,705,639.89 is: 29,558,436.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,213,362.58 : 115,819,950.92 = 19,705,639.89 : x
  2. Step 2: Convert to fraction form
    77,213,362.58/115,819,950.92 = 19,705,639.89/x
  3. Step 3: Cross multiply
    77,213,362.58x = 115,819,950.92 × 19,705,639.89
  4. Step 4: Simplify right side
    77,213,362.58x = 2,282,306,244,808,466
  5. Step 5: Solve for x
    x = 2,282,306,244,808,466/77,213,362.58
  6. Step 6: Final answer
    x = 29,558,436.11

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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.