Home / 211,360,785.92-291,407,943.84-136,889,800.64

Finding the Fourth Proportional to 211,360,785.92, 291,407,943.84 and 136,889,800.64

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Solution

The fourth proportional to 211,360,785.92, 291,407,943.84 and 136,889,800.64 is: 188,733,095.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,360,785.92 : 291,407,943.84 = 136,889,800.64 : x
  2. Step 2: Convert to fraction form
    211,360,785.92/291,407,943.84 = 136,889,800.64/x
  3. Step 3: Cross multiply
    211,360,785.92x = 291,407,943.84 × 136,889,800.64
  4. Step 4: Simplify right side
    211,360,785.92x = 39,890,775,337,169,912
  5. Step 5: Solve for x
    x = 39,890,775,337,169,912/211,360,785.92
  6. Step 6: Final answer
    x = 188,733,095.23

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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.