Home / 21,459,455.20-32,168,187.60-8,662,880.80

Finding the Fourth Proportional to 21,459,455.20, 32,168,187.60 and 8,662,880.80

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Solution

The fourth proportional to 21,459,455.20, 32,168,187.60 and 8,662,880.80 is: 12,985,845.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,459,455.20 : 32,168,187.60 = 8,662,880.80 : x
  2. Step 2: Convert to fraction form
    21,459,455.20/32,168,187.60 = 8,662,880.80/x
  3. Step 3: Cross multiply
    21,459,455.20x = 32,168,187.60 × 8,662,880.80
  4. Step 4: Simplify right side
    21,459,455.20x = 278,669,174,730,838.12
  5. Step 5: Solve for x
    x = 278,669,174,730,838.12/21,459,455.20
  6. Step 6: Final answer
    x = 12,985,845.73

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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.