Home / 144,480,546.99-199,382,143.59-78,399,364.77

Finding the Fourth Proportional to 144,480,546.99, 199,382,143.59 and 78,399,364.77

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Solution

The fourth proportional to 144,480,546.99, 199,382,143.59 and 78,399,364.77 is: 108,190,574.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,480,546.99 : 199,382,143.59 = 78,399,364.77 : x
  2. Step 2: Convert to fraction form
    144,480,546.99/199,382,143.59 = 78,399,364.77/x
  3. Step 3: Cross multiply
    144,480,546.99x = 199,382,143.59 × 78,399,364.77
  4. Step 4: Simplify right side
    144,480,546.99x = 15,631,433,403,936,926
  5. Step 5: Solve for x
    x = 15,631,433,403,936,926/144,480,546.99
  6. Step 6: Final answer
    x = 108,190,574.65

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1.5x scale

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.