Home / 216,855,359.12-325,412,287.53-78,691,744.62

Finding the Fourth Proportional to 216,855,359.12, 325,412,287.53 and 78,691,744.62

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Solution

The fourth proportional to 216,855,359.12, 325,412,287.53 and 78,691,744.62 is: 118,084,518.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,855,359.12 : 325,412,287.53 = 78,691,744.62 : x
  2. Step 2: Convert to fraction form
    216,855,359.12/325,412,287.53 = 78,691,744.62/x
  3. Step 3: Cross multiply
    216,855,359.12x = 325,412,287.53 × 78,691,744.62
  4. Step 4: Simplify right side
    216,855,359.12x = 25,607,260,626,520,768
  5. Step 5: Solve for x
    x = 25,607,260,626,520,768/216,855,359.12
  6. Step 6: Final answer
    x = 118,084,518.32

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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.