Home / 136,995,924.38-189,081,840.78-81,272,274.98

Finding the Fourth Proportional to 136,995,924.38, 189,081,840.78 and 81,272,274.98

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Solution

The fourth proportional to 136,995,924.38, 189,081,840.78 and 81,272,274.98 is: 112,172,033.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,995,924.38 : 189,081,840.78 = 81,272,274.98 : x
  2. Step 2: Convert to fraction form
    136,995,924.38/189,081,840.78 = 81,272,274.98/x
  3. Step 3: Cross multiply
    136,995,924.38x = 189,081,840.78 × 81,272,274.98
  4. Step 4: Simplify right side
    136,995,924.38x = 15,367,111,356,651,328
  5. Step 5: Solve for x
    x = 15,367,111,356,651,328/136,995,924.38
  6. Step 6: Final answer
    x = 112,172,033.05

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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.