Home / 136,850,079.78-188,701,808.78-87,211,866.52

Finding the Fourth Proportional to 136,850,079.78, 188,701,808.78 and 87,211,866.52

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Solution

The fourth proportional to 136,850,079.78, 188,701,808.78 and 87,211,866.52 is: 120,255,954.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,850,079.78 : 188,701,808.78 = 87,211,866.52 : x
  2. Step 2: Convert to fraction form
    136,850,079.78/188,701,808.78 = 87,211,866.52/x
  3. Step 3: Cross multiply
    136,850,079.78x = 188,701,808.78 × 87,211,866.52
  4. Step 4: Simplify right side
    136,850,079.78x = 16,457,036,959,403,924
  5. Step 5: Solve for x
    x = 16,457,036,959,403,924/136,850,079.78
  6. Step 6: Final answer
    x = 120,255,954.44

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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.