Home / 28,996,721.51-40,015,194.34-15,765,898.23

Finding the Fourth Proportional to 28,996,721.51, 40,015,194.34 and 15,765,898.23

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Solution

The fourth proportional to 28,996,721.51, 40,015,194.34 and 15,765,898.23 is: 21,756,786.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,996,721.51 : 40,015,194.34 = 15,765,898.23 : x
  2. Step 2: Convert to fraction form
    28,996,721.51/40,015,194.34 = 15,765,898.23/x
  3. Step 3: Cross multiply
    28,996,721.51x = 40,015,194.34 × 15,765,898.23
  4. Step 4: Simplify right side
    28,996,721.51x = 630,875,481,618,112.12
  5. Step 5: Solve for x
    x = 630,875,481,618,112.12/28,996,721.51
  6. Step 6: Final answer
    x = 21,756,786.59

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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.