Home / 21,461,807.20-32,181,651.60-7,991,701.60

Finding the Fourth Proportional to 21,461,807.20, 32,181,651.60 and 7,991,701.60

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Solution

The fourth proportional to 21,461,807.20, 32,181,651.60 and 7,991,701.60 is: 11,983,434.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,461,807.20 : 32,181,651.60 = 7,991,701.60 : x
  2. Step 2: Convert to fraction form
    21,461,807.20/32,181,651.60 = 7,991,701.60/x
  3. Step 3: Cross multiply
    21,461,807.20x = 32,181,651.60 × 7,991,701.60
  4. Step 4: Simplify right side
    21,461,807.20x = 257,186,156,582,362.56
  5. Step 5: Solve for x
    x = 257,186,156,582,362.56/21,461,807.20
  6. Step 6: Final answer
    x = 11,983,434.30

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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.