Home / 84,495,968.80-126,743,953.20-20,670,560.80

Finding the Fourth Proportional to 84,495,968.80, 126,743,953.20 and 20,670,560.80

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Solution

The fourth proportional to 84,495,968.80, 126,743,953.20 and 20,670,560.80 is: 31,005,841.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,495,968.80 : 126,743,953.20 = 20,670,560.80 : x
  2. Step 2: Convert to fraction form
    84,495,968.80/126,743,953.20 = 20,670,560.80/x
  3. Step 3: Cross multiply
    84,495,968.80x = 126,743,953.20 × 20,670,560.80
  4. Step 4: Simplify right side
    84,495,968.80x = 2,619,868,590,652,954.50
  5. Step 5: Solve for x
    x = 2,619,868,590,652,954.50/84,495,968.80
  6. Step 6: Final answer
    x = 31,005,841.20

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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.