Home / 28,077,754.89-42,088,731.66-19,540,155.21

Finding the Fourth Proportional to 28,077,754.89, 42,088,731.66 and 19,540,155.21

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Solution

The fourth proportional to 28,077,754.89, 42,088,731.66 and 19,540,155.21 is: 29,290,815.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,077,754.89 : 42,088,731.66 = 19,540,155.21 : x
  2. Step 2: Convert to fraction form
    28,077,754.89/42,088,731.66 = 19,540,155.21/x
  3. Step 3: Cross multiply
    28,077,754.89x = 42,088,731.66 × 19,540,155.21
  4. Step 4: Simplify right side
    28,077,754.89x = 822,420,349,228,440.88
  5. Step 5: Solve for x
    x = 822,420,349,228,440.88/28,077,754.89
  6. Step 6: Final answer
    x = 29,290,815.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.