Home / 278,816,058.40-418,323,620.40-117,307,501.60

Finding the Fourth Proportional to 278,816,058.40, 418,323,620.40 and 117,307,501.60

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Solution

The fourth proportional to 278,816,058.40, 418,323,620.40 and 117,307,501.60 is: 176,003,129.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,816,058.40 : 418,323,620.40 = 117,307,501.60 : x
  2. Step 2: Convert to fraction form
    278,816,058.40/418,323,620.40 = 117,307,501.60/x
  3. Step 3: Cross multiply
    278,816,058.40x = 418,323,620.40 × 117,307,501.60
  4. Step 4: Simplify right side
    278,816,058.40x = 49,072,498,769,390,784
  5. Step 5: Solve for x
    x = 49,072,498,769,390,784/278,816,058.40
  6. Step 6: Final answer
    x = 176,003,129.27

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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.