Home / 71,789,902.71-107,678,211.03-19,975,290.93

Finding the Fourth Proportional to 71,789,902.71, 107,678,211.03 and 19,975,290.93

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Solution

The fourth proportional to 71,789,902.71, 107,678,211.03 and 19,975,290.93 is: 29,961,087.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,789,902.71 : 107,678,211.03 = 19,975,290.93 : x
  2. Step 2: Convert to fraction form
    71,789,902.71/107,678,211.03 = 19,975,290.93/x
  3. Step 3: Cross multiply
    71,789,902.71x = 107,678,211.03 × 19,975,290.93
  4. Step 4: Simplify right side
    71,789,902.71x = 2,150,903,592,146,185
  5. Step 5: Solve for x
    x = 2,150,903,592,146,185/71,789,902.71
  6. Step 6: Final answer
    x = 29,961,087.99

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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.