Home / 77,213,409.14-115,820,020.56-19,705,686.46

Finding the Fourth Proportional to 77,213,409.14, 115,820,020.56 and 19,705,686.46

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Solution

The fourth proportional to 77,213,409.14, 115,820,020.56 and 19,705,686.46 is: 29,558,505.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,213,409.14 : 115,820,020.56 = 19,705,686.46 : x
  2. Step 2: Convert to fraction form
    77,213,409.14/115,820,020.56 = 19,705,686.46/x
  3. Step 3: Cross multiply
    77,213,409.14x = 115,820,020.56 × 19,705,686.46
  4. Step 4: Simplify right side
    77,213,409.14x = 2,282,313,010,946,114
  5. Step 5: Solve for x
    x = 2,282,313,010,946,114/77,213,409.14
  6. Step 6: Final answer
    x = 29,558,505.92

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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.