Home / 191,632,387.20-287,448,580.80-76,560,028.80

Finding the Fourth Proportional to 191,632,387.20, 287,448,580.80 and 76,560,028.80

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Solution

The fourth proportional to 191,632,387.20, 287,448,580.80 and 76,560,028.80 is: 114,840,043.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,632,387.20 : 287,448,580.80 = 76,560,028.80 : x
  2. Step 2: Convert to fraction form
    191,632,387.20/287,448,580.80 = 76,560,028.80/x
  3. Step 3: Cross multiply
    191,632,387.20x = 287,448,580.80 × 76,560,028.80
  4. Step 4: Simplify right side
    191,632,387.20x = 22,007,071,624,567,128
  5. Step 5: Solve for x
    x = 22,007,071,624,567,128/191,632,387.20
  6. Step 6: Final answer
    x = 114,840,043.20

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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.