Home / 20,428,140.06-28,192,518.59-11,727,991.62

Finding the Fourth Proportional to 20,428,140.06, 28,192,518.59 and 11,727,991.62

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Solution

The fourth proportional to 20,428,140.06, 28,192,518.59 and 11,727,991.62 is: 16,185,595.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,428,140.06 : 28,192,518.59 = 11,727,991.62 : x
  2. Step 2: Convert to fraction form
    20,428,140.06/28,192,518.59 = 11,727,991.62/x
  3. Step 3: Cross multiply
    20,428,140.06x = 28,192,518.59 × 11,727,991.62
  4. Step 4: Simplify right side
    20,428,140.06x = 330,641,621,711,574.25
  5. Step 5: Solve for x
    x = 330,641,621,711,574.25/20,428,140.06
  6. Step 6: Final answer
    x = 16,185,595.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.