Home / 127,768,417.20-191,652,625.80-91,488,711.60

Finding the Fourth Proportional to 127,768,417.20, 191,652,625.80 and 91,488,711.60

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Solution

The fourth proportional to 127,768,417.20, 191,652,625.80 and 91,488,711.60 is: 137,233,067.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,768,417.20 : 191,652,625.80 = 91,488,711.60 : x
  2. Step 2: Convert to fraction form
    127,768,417.20/191,652,625.80 = 91,488,711.60/x
  3. Step 3: Cross multiply
    127,768,417.20x = 191,652,625.80 × 91,488,711.60
  4. Step 4: Simplify right side
    127,768,417.20x = 17,534,051,809,198,920
  5. Step 5: Solve for x
    x = 17,534,051,809,198,920/127,768,417.20
  6. Step 6: Final answer
    x = 137,233,067.40

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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.