Home / 80,989,564.80-121,495,003.20-29,907,465.60

Finding the Fourth Proportional to 80,989,564.80, 121,495,003.20 and 29,907,465.60

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Solution

The fourth proportional to 80,989,564.80, 121,495,003.20 and 29,907,465.60 is: 44,865,133.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,989,564.80 : 121,495,003.20 = 29,907,465.60 : x
  2. Step 2: Convert to fraction form
    80,989,564.80/121,495,003.20 = 29,907,465.60/x
  3. Step 3: Cross multiply
    80,989,564.80x = 121,495,003.20 × 29,907,465.60
  4. Step 4: Simplify right side
    80,989,564.80x = 3,633,607,628,775,890
  5. Step 5: Solve for x
    x = 3,633,607,628,775,890/80,989,564.80
  6. Step 6: Final answer
    x = 44,865,133.40

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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.