Home / 28,256,786.96-42,323,384.79-20,034,505.91

Finding the Fourth Proportional to 28,256,786.96, 42,323,384.79 and 20,034,505.91

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Solution

The fourth proportional to 28,256,786.96, 42,323,384.79 and 20,034,505.91 is: 30,007,944.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,256,786.96 : 42,323,384.79 = 20,034,505.91 : x
  2. Step 2: Convert to fraction form
    28,256,786.96/42,323,384.79 = 20,034,505.91/x
  3. Step 3: Cross multiply
    28,256,786.96x = 42,323,384.79 × 20,034,505.91
  4. Step 4: Simplify right side
    28,256,786.96x = 847,928,102,812,267.62
  5. Step 5: Solve for x
    x = 847,928,102,812,267.62/28,256,786.96
  6. Step 6: Final answer
    x = 30,007,944.79

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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.