Home / 28,519,661.76-39,356,865.36-15,467,208.72

Finding the Fourth Proportional to 28,519,661.76, 39,356,865.36 and 15,467,208.72

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Solution

The fourth proportional to 28,519,661.76, 39,356,865.36 and 15,467,208.72 is: 21,344,602.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,519,661.76 : 39,356,865.36 = 15,467,208.72 : x
  2. Step 2: Convert to fraction form
    28,519,661.76/39,356,865.36 = 15,467,208.72/x
  3. Step 3: Cross multiply
    28,519,661.76x = 39,356,865.36 × 15,467,208.72
  4. Step 4: Simplify right side
    28,519,661.76x = 608,740,851,088,058
  5. Step 5: Solve for x
    x = 608,740,851,088,058/28,519,661.76
  6. Step 6: Final answer
    x = 21,344,602.76

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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.