Home / 28,270,998-39,009,727.58-15,878,717.42

Finding the Fourth Proportional to 28,270,998, 39,009,727.58 and 15,878,717.42

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Solution

The fourth proportional to 28,270,998, 39,009,727.58 and 15,878,717.42 is: 21,910,243.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,270,998 : 39,009,727.58 = 15,878,717.42 : x
  2. Step 2: Convert to fraction form
    28,270,998/39,009,727.58 = 15,878,717.42/x
  3. Step 3: Cross multiply
    28,270,998x = 39,009,727.58 × 15,878,717.42
  4. Step 4: Simplify right side
    28,270,998x = 619,424,440,599,558.25
  5. Step 5: Solve for x
    x = 619,424,440,599,558.25/28,270,998
  6. Step 6: Final answer
    x = 21,910,243.16

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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.