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Finding the Fourth Proportional to 199,500,130.20, 278,619,937.80 and 199,500,130.20

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Solution

The fourth proportional to 199,500,130.20, 278,619,937.80 and 199,500,130.20 is: 278,619,937.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,500,130.20 : 278,619,937.80 = 199,500,130.20 : x
  2. Step 2: Convert to fraction form
    199,500,130.20/278,619,937.80 = 199,500,130.20/x
  3. Step 3: Cross multiply
    199,500,130.20x = 278,619,937.80 × 199,500,130.20
  4. Step 4: Simplify right side
    199,500,130.20x = 55,584,713,867,415,904
  5. Step 5: Solve for x
    x = 55,584,713,867,415,904/199,500,130.20
  6. Step 6: Final answer
    x = 278,619,937.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.