Home / 74,471,720.40-111,707,580.60-20,619,032.40

Finding the Fourth Proportional to 74,471,720.40, 111,707,580.60 and 20,619,032.40

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Solution

The fourth proportional to 74,471,720.40, 111,707,580.60 and 20,619,032.40 is: 30,928,548.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,471,720.40 : 111,707,580.60 = 20,619,032.40 : x
  2. Step 2: Convert to fraction form
    74,471,720.40/111,707,580.60 = 20,619,032.40/x
  3. Step 3: Cross multiply
    74,471,720.40x = 111,707,580.60 × 20,619,032.40
  4. Step 4: Simplify right side
    74,471,720.40x = 2,303,302,223,717,011
  5. Step 5: Solve for x
    x = 2,303,302,223,717,011/74,471,720.40
  6. Step 6: Final answer
    x = 30,928,548.60

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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.