Home / 77,213,364.65-115,819,954.01-19,705,641.96

Finding the Fourth Proportional to 77,213,364.65, 115,819,954.01 and 19,705,641.96

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Solution

The fourth proportional to 77,213,364.65, 115,819,954.01 and 19,705,641.96 is: 29,558,439.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,213,364.65 : 115,819,954.01 = 19,705,641.96 : x
  2. Step 2: Convert to fraction form
    77,213,364.65/115,819,954.01 = 19,705,641.96/x
  3. Step 3: Cross multiply
    77,213,364.65x = 115,819,954.01 × 19,705,641.96
  4. Step 4: Simplify right side
    77,213,364.65x = 2,282,306,545,446,198
  5. Step 5: Solve for x
    x = 2,282,306,545,446,198/77,213,364.65
  6. Step 6: Final answer
    x = 29,558,439.22

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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.