Home / 278,756,450.73-418,107,430.94-84,669,551.37

Finding the Fourth Proportional to 278,756,450.73, 418,107,430.94 and 84,669,551.37

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Solution

The fourth proportional to 278,756,450.73, 418,107,430.94 and 84,669,551.37 is: 126,996,051.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,756,450.73 : 418,107,430.94 = 84,669,551.37 : x
  2. Step 2: Convert to fraction form
    278,756,450.73/418,107,430.94 = 84,669,551.37/x
  3. Step 3: Cross multiply
    278,756,450.73x = 418,107,430.94 × 84,669,551.37
  4. Step 4: Simplify right side
    278,756,450.73x = 35,400,968,601,729,712
  5. Step 5: Solve for x
    x = 35,400,968,601,729,712/278,756,450.73
  6. Step 6: Final answer
    x = 126,996,051.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.