Home / 199,379,345.12-299,115,993.93-68,223,048.59

Finding the Fourth Proportional to 199,379,345.12, 299,115,993.93 and 68,223,048.59

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Solution

The fourth proportional to 199,379,345.12, 299,115,993.93 and 68,223,048.59 is: 102,350,647.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,379,345.12 : 299,115,993.93 = 68,223,048.59 : x
  2. Step 2: Convert to fraction form
    199,379,345.12/299,115,993.93 = 68,223,048.59/x
  3. Step 3: Cross multiply
    199,379,345.12x = 299,115,993.93 × 68,223,048.59
  4. Step 4: Simplify right side
    199,379,345.12x = 20,406,604,987,085,816
  5. Step 5: Solve for x
    x = 20,406,604,987,085,816/199,379,345.12
  6. Step 6: Final answer
    x = 102,350,647.08

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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.