Home / 77,530,200.79-106,992,394.54-42,724,136.76

Finding the Fourth Proportional to 77,530,200.79, 106,992,394.54 and 42,724,136.76

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Solution

The fourth proportional to 77,530,200.79, 106,992,394.54 and 42,724,136.76 is: 58,959,704.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,530,200.79 : 106,992,394.54 = 42,724,136.76 : x
  2. Step 2: Convert to fraction form
    77,530,200.79/106,992,394.54 = 42,724,136.76/x
  3. Step 3: Cross multiply
    77,530,200.79x = 106,992,394.54 × 42,724,136.76
  4. Step 4: Simplify right side
    77,530,200.79x = 4,571,157,696,606,837
  5. Step 5: Solve for x
    x = 4,571,157,696,606,837/77,530,200.79
  6. Step 6: Final answer
    x = 58,959,704.09

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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.