Home / 19,991,340.52-29,964,341.50-9,186,314.62

Finding the Fourth Proportional to 19,991,340.52, 29,964,341.50 and 9,186,314.62

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Solution

The fourth proportional to 19,991,340.52, 29,964,341.50 and 9,186,314.62 is: 13,769,055.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,991,340.52 : 29,964,341.50 = 9,186,314.62 : x
  2. Step 2: Convert to fraction form
    19,991,340.52/29,964,341.50 = 9,186,314.62/x
  3. Step 3: Cross multiply
    19,991,340.52x = 29,964,341.50 × 9,186,314.62
  4. Step 4: Simplify right side
    19,991,340.52x = 275,261,868,400,122.72
  5. Step 5: Solve for x
    x = 275,261,868,400,122.72/19,991,340.52
  6. Step 6: Final answer
    x = 13,769,055.06

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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.