Home / 211,803,520.77-292,204,809-122,478,959.61

Finding the Fourth Proportional to 211,803,520.77, 292,204,809 and 122,478,959.61

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Solution

The fourth proportional to 211,803,520.77, 292,204,809 and 122,478,959.61 is: 168,972,361.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,803,520.77 : 292,204,809 = 122,478,959.61 : x
  2. Step 2: Convert to fraction form
    211,803,520.77/292,204,809 = 122,478,959.61/x
  3. Step 3: Cross multiply
    211,803,520.77x = 292,204,809 × 122,478,959.61
  4. Step 4: Simplify right side
    211,803,520.77x = 35,788,940,999,358,764
  5. Step 5: Solve for x
    x = 35,788,940,999,358,764/211,803,520.77
  6. Step 6: Final answer
    x = 168,972,361.13

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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.