Home / 12,307,796.80-18,461,695.20-10,890,620.80

Finding the Fourth Proportional to 12,307,796.80, 18,461,695.20 and 10,890,620.80

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Solution

The fourth proportional to 12,307,796.80, 18,461,695.20 and 10,890,620.80 is: 16,335,931.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,307,796.80 : 18,461,695.20 = 10,890,620.80 : x
  2. Step 2: Convert to fraction form
    12,307,796.80/18,461,695.20 = 10,890,620.80/x
  3. Step 3: Cross multiply
    12,307,796.80x = 18,461,695.20 × 10,890,620.80
  4. Step 4: Simplify right side
    12,307,796.80x = 201,059,321,748,380.16
  5. Step 5: Solve for x
    x = 201,059,321,748,380.16/12,307,796.80
  6. Step 6: Final answer
    x = 16,335,931.20

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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.