Home / 74,156,986.40-111,235,479.60-51,198,735.20

Finding the Fourth Proportional to 74,156,986.40, 111,235,479.60 and 51,198,735.20

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Solution

The fourth proportional to 74,156,986.40, 111,235,479.60 and 51,198,735.20 is: 76,798,102.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,156,986.40 : 111,235,479.60 = 51,198,735.20 : x
  2. Step 2: Convert to fraction form
    74,156,986.40/111,235,479.60 = 51,198,735.20/x
  3. Step 3: Cross multiply
    74,156,986.40x = 111,235,479.60 × 51,198,735.20
  4. Step 4: Simplify right side
    74,156,986.40x = 5,695,115,864,885,402
  5. Step 5: Solve for x
    x = 5,695,115,864,885,402/74,156,986.40
  6. Step 6: Final answer
    x = 76,798,102.80

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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.