Home / 205,137,856.80-307,445,511.60-83,832,256.80

Finding the Fourth Proportional to 205,137,856.80, 307,445,511.60 and 83,832,256.80

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Solution

The fourth proportional to 205,137,856.80, 307,445,511.60 and 83,832,256.80 is: 125,641,612.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,137,856.80 : 307,445,511.60 = 83,832,256.80 : x
  2. Step 2: Convert to fraction form
    205,137,856.80/307,445,511.60 = 83,832,256.80/x
  3. Step 3: Cross multiply
    205,137,856.80x = 307,445,511.60 × 83,832,256.80
  4. Step 4: Simplify right side
    205,137,856.80x = 25,773,851,080,458,580
  5. Step 5: Solve for x
    x = 25,773,851,080,458,580/205,137,856.80
  6. Step 6: Final answer
    x = 125,641,612.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.