Home / 144,229,967.15-199,038,047.72-78,150,448.08

Finding the Fourth Proportional to 144,229,967.15, 199,038,047.72 and 78,150,448.08

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Solution

The fourth proportional to 144,229,967.15, 199,038,047.72 and 78,150,448.08 is: 107,847,993.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,229,967.15 : 199,038,047.72 = 78,150,448.08 : x
  2. Step 2: Convert to fraction form
    144,229,967.15/199,038,047.72 = 78,150,448.08/x
  3. Step 3: Cross multiply
    144,229,967.15x = 199,038,047.72 × 78,150,448.08
  4. Step 4: Simplify right side
    144,229,967.15x = 15,554,912,613,895,670
  5. Step 5: Solve for x
    x = 15,554,912,613,895,670/144,229,967.15
  6. Step 6: Final answer
    x = 107,847,993.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.