Home / 12,107,869.20-18,152,764.20-7,314,548.40

Finding the Fourth Proportional to 12,107,869.20, 18,152,764.20 and 7,314,548.40

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Solution

The fourth proportional to 12,107,869.20, 18,152,764.20 and 7,314,548.40 is: 10,966,361.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,107,869.20 : 18,152,764.20 = 7,314,548.40 : x
  2. Step 2: Convert to fraction form
    12,107,869.20/18,152,764.20 = 7,314,548.40/x
  3. Step 3: Cross multiply
    12,107,869.20x = 18,152,764.20 × 7,314,548.40
  4. Step 4: Simplify right side
    12,107,869.20x = 132,779,272,334,687.28
  5. Step 5: Solve for x
    x = 132,779,272,334,687.28/12,107,869.20
  6. Step 6: Final answer
    x = 10,966,361.64

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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.