Home / 76,906,307.78-106,123,979.61-45,538,729.46

Finding the Fourth Proportional to 76,906,307.78, 106,123,979.61 and 45,538,729.46

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Solution

The fourth proportional to 76,906,307.78, 106,123,979.61 and 45,538,729.46 is: 62,839,464.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,906,307.78 : 106,123,979.61 = 45,538,729.46 : x
  2. Step 2: Convert to fraction form
    76,906,307.78/106,123,979.61 = 45,538,729.46/x
  3. Step 3: Cross multiply
    76,906,307.78x = 106,123,979.61 × 45,538,729.46
  4. Step 4: Simplify right side
    76,906,307.78x = 4,832,751,196,678,346
  5. Step 5: Solve for x
    x = 4,832,751,196,678,346/76,906,307.78
  6. Step 6: Final answer
    x = 62,839,464.49

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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.