Home / 211,079,620.40-316,619,430.60-74,747,289.20

Finding the Fourth Proportional to 211,079,620.40, 316,619,430.60 and 74,747,289.20

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Solution

The fourth proportional to 211,079,620.40, 316,619,430.60 and 74,747,289.20 is: 112,120,933.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,079,620.40 : 316,619,430.60 = 74,747,289.20 : x
  2. Step 2: Convert to fraction form
    211,079,620.40/316,619,430.60 = 74,747,289.20/x
  3. Step 3: Cross multiply
    211,079,620.40x = 316,619,430.60 × 74,747,289.20
  4. Step 4: Simplify right side
    211,079,620.40x = 23,666,444,145,397,532
  5. Step 5: Solve for x
    x = 23,666,444,145,397,532/211,079,620.40
  6. Step 6: Final answer
    x = 112,120,933.80

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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.