Home / 140,991,971.81-194,570,488.73-78,272,311.01

Finding the Fourth Proportional to 140,991,971.81, 194,570,488.73 and 78,272,311.01

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Solution

The fourth proportional to 140,991,971.81, 194,570,488.73 and 78,272,311.01 is: 108,016,659.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,991,971.81 : 194,570,488.73 = 78,272,311.01 : x
  2. Step 2: Convert to fraction form
    140,991,971.81/194,570,488.73 = 78,272,311.01/x
  3. Step 3: Cross multiply
    140,991,971.81x = 194,570,488.73 × 78,272,311.01
  4. Step 4: Simplify right side
    140,991,971.81x = 15,229,481,806,465,086
  5. Step 5: Solve for x
    x = 15,229,481,806,465,086/140,991,971.81
  6. Step 6: Final answer
    x = 108,016,659.47

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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.