Home / 28,152,882-38,850,977.16-15,275,826

Finding the Fourth Proportional to 28,152,882, 38,850,977.16 and 15,275,826

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Solution

The fourth proportional to 28,152,882, 38,850,977.16 and 15,275,826 is: 21,080,639.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,152,882 : 38,850,977.16 = 15,275,826 : x
  2. Step 2: Convert to fraction form
    28,152,882/38,850,977.16 = 15,275,826/x
  3. Step 3: Cross multiply
    28,152,882x = 38,850,977.16 × 15,275,826
  4. Step 4: Simplify right side
    28,152,882x = 593,480,767,026,134.12
  5. Step 5: Solve for x
    x = 593,480,767,026,134.12/28,152,882
  6. Step 6: Final answer
    x = 21,080,639.88

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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.