Home / 80,851,520.70-121,277,281.05-61,719,644.70

Finding the Fourth Proportional to 80,851,520.70, 121,277,281.05 and 61,719,644.70

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Solution

The fourth proportional to 80,851,520.70, 121,277,281.05 and 61,719,644.70 is: 92,579,467.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,851,520.70 : 121,277,281.05 = 61,719,644.70 : x
  2. Step 2: Convert to fraction form
    80,851,520.70/121,277,281.05 = 61,719,644.70/x
  3. Step 3: Cross multiply
    80,851,520.70x = 121,277,281.05 × 61,719,644.70
  4. Step 4: Simplify right side
    80,851,520.70x = 7,485,190,696,588,043
  5. Step 5: Solve for x
    x = 7,485,190,696,588,043/80,851,520.70
  6. Step 6: Final answer
    x = 92,579,467.05

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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.