Home / 180,445,415.78-248,971,976.10-102,128,971.50

Finding the Fourth Proportional to 180,445,415.78, 248,971,976.10 and 102,128,971.50

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Solution

The fourth proportional to 180,445,415.78, 248,971,976.10 and 102,128,971.50 is: 140,913,814.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,445,415.78 : 248,971,976.10 = 102,128,971.50 : x
  2. Step 2: Convert to fraction form
    180,445,415.78/248,971,976.10 = 102,128,971.50/x
  3. Step 3: Cross multiply
    180,445,415.78x = 248,971,976.10 × 102,128,971.50
  4. Step 4: Simplify right side
    180,445,415.78x = 25,427,251,851,415,580
  5. Step 5: Solve for x
    x = 25,427,251,851,415,580/180,445,415.78
  6. Step 6: Final answer
    x = 140,913,814.52

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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.