Home / 13,582,478.88-18,742,700.88-7,999,855.20

Finding the Fourth Proportional to 13,582,478.88, 18,742,700.88 and 7,999,855.20

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Solution

The fourth proportional to 13,582,478.88, 18,742,700.88 and 7,999,855.20 is: 11,039,140.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,582,478.88 : 18,742,700.88 = 7,999,855.20 : x
  2. Step 2: Convert to fraction form
    13,582,478.88/18,742,700.88 = 7,999,855.20/x
  3. Step 3: Cross multiply
    13,582,478.88x = 18,742,700.88 × 7,999,855.20
  4. Step 4: Simplify right side
    13,582,478.88x = 149,938,893,096,912.56
  5. Step 5: Solve for x
    x = 149,938,893,096,912.56/13,582,478.88
  6. Step 6: Final answer
    x = 11,039,140.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.