Home / 55,519,425.15-76,619,201.42-30,739,612.54

Finding the Fourth Proportional to 55,519,425.15, 76,619,201.42 and 30,739,612.54

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Solution

The fourth proportional to 55,519,425.15, 76,619,201.42 and 30,739,612.54 is: 42,421,991.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,519,425.15 : 76,619,201.42 = 30,739,612.54 : x
  2. Step 2: Convert to fraction form
    55,519,425.15/76,619,201.42 = 30,739,612.54/x
  3. Step 3: Cross multiply
    55,519,425.15x = 76,619,201.42 × 30,739,612.54
  4. Step 4: Simplify right side
    55,519,425.15x = 2,355,244,564,631,069.50
  5. Step 5: Solve for x
    x = 2,355,244,564,631,069.50/55,519,425.15
  6. Step 6: Final answer
    x = 42,421,991.19

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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.