Home / 196,812,979.20-295,387,430.40-87,805,900.80

Finding the Fourth Proportional to 196,812,979.20, 295,387,430.40 and 87,805,900.80

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Solution

The fourth proportional to 196,812,979.20, 295,387,430.40 and 87,805,900.80 is: 131,783,785.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,812,979.20 : 295,387,430.40 = 87,805,900.80 : x
  2. Step 2: Convert to fraction form
    196,812,979.20/295,387,430.40 = 87,805,900.80/x
  3. Step 3: Cross multiply
    196,812,979.20x = 295,387,430.40 × 87,805,900.80
  4. Step 4: Simplify right side
    196,812,979.20x = 25,936,759,411,269,300
  5. Step 5: Solve for x
    x = 25,936,759,411,269,300/196,812,979.20
  6. Step 6: Final answer
    x = 131,783,785.38

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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.