Home / 13,606,721,945.15-18,778,394,071.37-7,504,267,989.83

Finding the Fourth Proportional to 13,606,721,945.15, 18,778,394,071.37 and 7,504,267,989.83

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Solution

The fourth proportional to 13,606,721,945.15, 18,778,394,071.37 and 7,504,267,989.83 is: 10,356,506,298.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,606,721,945.15 : 18,778,394,071.37 = 7,504,267,989.83 : x
  2. Step 2: Convert to fraction form
    13,606,721,945.15/18,778,394,071.37 = 7,504,267,989.83/x
  3. Step 3: Cross multiply
    13,606,721,945.15x = 18,778,394,071.37 × 7,504,267,989.83
  4. Step 4: Simplify right side
    13,606,721,945.15x = 140,918,101,530,120,224,768
  5. Step 5: Solve for x
    x = 140,918,101,530,120,224,768/13,606,721,945.15
  6. Step 6: Final answer
    x = 10,356,506,298.74

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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.