Home / 122,213,009.78-168,650,590.14-67,208,866.28

Finding the Fourth Proportional to 122,213,009.78, 168,650,590.14 and 67,208,866.28

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Solution

The fourth proportional to 122,213,009.78, 168,650,590.14 and 67,208,866.28 is: 92,746,385.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,213,009.78 : 168,650,590.14 = 67,208,866.28 : x
  2. Step 2: Convert to fraction form
    122,213,009.78/168,650,590.14 = 67,208,866.28/x
  3. Step 3: Cross multiply
    122,213,009.78x = 168,650,590.14 × 67,208,866.28
  4. Step 4: Simplify right side
    122,213,009.78x = 11,334,814,959,919,094
  5. Step 5: Solve for x
    x = 11,334,814,959,919,094/122,213,009.78
  6. Step 6: Final answer
    x = 92,746,385.85

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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.