Home / 77,405,589.63-106,819,682.78-42,598,280.03

Finding the Fourth Proportional to 77,405,589.63, 106,819,682.78 and 42,598,280.03

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Solution

The fourth proportional to 77,405,589.63, 106,819,682.78 and 42,598,280.03 is: 58,785,609.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,405,589.63 : 106,819,682.78 = 42,598,280.03 : x
  2. Step 2: Convert to fraction form
    77,405,589.63/106,819,682.78 = 42,598,280.03/x
  3. Step 3: Cross multiply
    77,405,589.63x = 106,819,682.78 × 42,598,280.03
  4. Step 4: Simplify right side
    77,405,589.63x = 4,550,334,759,350,606
  5. Step 5: Solve for x
    x = 4,550,334,759,350,606/77,405,589.63
  6. Step 6: Final answer
    x = 58,785,609.43

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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.