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Finding the Fourth Proportional to 79,349,743.80, 119,024,615.70 and 21,850,889.40

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Solution

The fourth proportional to 79,349,743.80, 119,024,615.70 and 21,850,889.40 is: 32,776,334.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,349,743.80 : 119,024,615.70 = 21,850,889.40 : x
  2. Step 2: Convert to fraction form
    79,349,743.80/119,024,615.70 = 21,850,889.40/x
  3. Step 3: Cross multiply
    79,349,743.80x = 119,024,615.70 × 21,850,889.40
  4. Step 4: Simplify right side
    79,349,743.80x = 2,600,793,713,538,203.50
  5. Step 5: Solve for x
    x = 2,600,793,713,538,203.50/79,349,743.80
  6. Step 6: Final answer
    x = 32,776,334.10

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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.