Home / 28,591,727.69-39,456,888.93-15,538,987.28

Finding the Fourth Proportional to 28,591,727.69, 39,456,888.93 and 15,538,987.28

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Solution

The fourth proportional to 28,591,727.69, 39,456,888.93 and 15,538,987.28 is: 21,443,968.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,591,727.69 : 39,456,888.93 = 15,538,987.28 : x
  2. Step 2: Convert to fraction form
    28,591,727.69/39,456,888.93 = 15,538,987.28/x
  3. Step 3: Cross multiply
    28,591,727.69x = 39,456,888.93 × 15,538,987.28
  4. Step 4: Simplify right side
    28,591,727.69x = 613,120,094,994,358.38
  5. Step 5: Solve for x
    x = 613,120,094,994,358.38/28,591,727.69
  6. Step 6: Final answer
    x = 21,443,968.05

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1.5x scale

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.