Home / 28,091,403.82-42,139,909.41-7,621,444.54

Finding the Fourth Proportional to 28,091,403.82, 42,139,909.41 and 7,621,444.54

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Solution

The fourth proportional to 28,091,403.82, 42,139,909.41 and 7,621,444.54 is: 11,432,927.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,091,403.82 : 42,139,909.41 = 7,621,444.54 : x
  2. Step 2: Convert to fraction form
    28,091,403.82/42,139,909.41 = 7,621,444.54/x
  3. Step 3: Cross multiply
    28,091,403.82x = 42,139,909.41 × 7,621,444.54
  4. Step 4: Simplify right side
    28,091,403.82x = 321,166,982,488,939.12
  5. Step 5: Solve for x
    x = 321,166,982,488,939.12/28,091,403.82
  6. Step 6: Final answer
    x = 11,432,927.47

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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.