Home / 72,868,769.76-109,322,325.94-26,186,971.54

Finding the Fourth Proportional to 72,868,769.76, 109,322,325.94 and 26,186,971.54

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Solution

The fourth proportional to 72,868,769.76, 109,322,325.94 and 26,186,971.54 is: 39,287,346.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,868,769.76 : 109,322,325.94 = 26,186,971.54 : x
  2. Step 2: Convert to fraction form
    72,868,769.76/109,322,325.94 = 26,186,971.54/x
  3. Step 3: Cross multiply
    72,868,769.76x = 109,322,325.94 × 26,186,971.54
  4. Step 4: Simplify right side
    72,868,769.76x = 2,862,820,638,077,383.50
  5. Step 5: Solve for x
    x = 2,862,820,638,077,383.50/72,868,769.76
  6. Step 6: Final answer
    x = 39,287,346.93

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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.