Home / 20,727,941.10-31,091,911.66-9,939,688.80

Finding the Fourth Proportional to 20,727,941.10, 31,091,911.66 and 9,939,688.80

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Solution

The fourth proportional to 20,727,941.10, 31,091,911.66 and 9,939,688.80 is: 14,909,533.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727,941.10 : 31,091,911.66 = 9,939,688.80 : x
  2. Step 2: Convert to fraction form
    20,727,941.10/31,091,911.66 = 9,939,688.80/x
  3. Step 3: Cross multiply
    20,727,941.10x = 31,091,911.66 × 9,939,688.80
  4. Step 4: Simplify right side
    20,727,941.10x = 309,043,926,097,491.44
  5. Step 5: Solve for x
    x = 309,043,926,097,491.44/20,727,941.10
  6. Step 6: Final answer
    x = 14,909,533.20

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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.