Home / 28,720,295.64-39,634,008.03-15,667,607.22

Finding the Fourth Proportional to 28,720,295.64, 39,634,008.03 and 15,667,607.22

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Solution

The fourth proportional to 28,720,295.64, 39,634,008.03 and 15,667,607.22 is: 21,621,297.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,720,295.64 : 39,634,008.03 = 15,667,607.22 : x
  2. Step 2: Convert to fraction form
    28,720,295.64/39,634,008.03 = 15,667,607.22/x
  3. Step 3: Cross multiply
    28,720,295.64x = 39,634,008.03 × 15,667,607.22
  4. Step 4: Simplify right side
    28,720,295.64x = 620,970,070,368,366
  5. Step 5: Solve for x
    x = 620,970,070,368,366/28,720,295.64
  6. Step 6: Final answer
    x = 21,621,297.99

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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.