Home / 77,530,220.70-106,992,422.11-42,724,156.74

Finding the Fourth Proportional to 77,530,220.70, 106,992,422.11 and 42,724,156.74

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Solution

The fourth proportional to 77,530,220.70, 106,992,422.11 and 42,724,156.74 is: 58,959,731.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,530,220.70 : 106,992,422.11 = 42,724,156.74 : x
  2. Step 2: Convert to fraction form
    77,530,220.70/106,992,422.11 = 42,724,156.74/x
  3. Step 3: Cross multiply
    77,530,220.70x = 106,992,422.11 × 42,724,156.74
  4. Step 4: Simplify right side
    77,530,220.70x = 4,571,161,012,113,071
  5. Step 5: Solve for x
    x = 4,571,161,012,113,071/77,530,220.70
  6. Step 6: Final answer
    x = 58,959,731.71

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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.