Home / 77,213,365.56-115,819,955.42-19,705,642.88

Finding the Fourth Proportional to 77,213,365.56, 115,819,955.42 and 19,705,642.88

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Solution

The fourth proportional to 77,213,365.56, 115,819,955.42 and 19,705,642.88 is: 29,558,440.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,213,365.56 : 115,819,955.42 = 19,705,642.88 : x
  2. Step 2: Convert to fraction form
    77,213,365.56/115,819,955.42 = 19,705,642.88/x
  3. Step 3: Cross multiply
    77,213,365.56x = 115,819,955.42 × 19,705,642.88
  4. Step 4: Simplify right side
    77,213,365.56x = 2,282,306,679,206,412.50
  5. Step 5: Solve for x
    x = 2,282,306,679,206,412.50/77,213,365.56
  6. Step 6: Final answer
    x = 29,558,440.60

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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.