Home / 13,443,366.17-18,551,760.55-7,642,148.20

Finding the Fourth Proportional to 13,443,366.17, 18,551,760.55 and 7,642,148.20

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Solution

The fourth proportional to 13,443,366.17, 18,551,760.55 and 7,642,148.20 is: 10,546,116.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,443,366.17 : 18,551,760.55 = 7,642,148.20 : x
  2. Step 2: Convert to fraction form
    13,443,366.17/18,551,760.55 = 7,642,148.20/x
  3. Step 3: Cross multiply
    13,443,366.17x = 18,551,760.55 × 7,642,148.20
  4. Step 4: Simplify right side
    13,443,366.17x = 141,775,303,428,528.72
  5. Step 5: Solve for x
    x = 141,775,303,428,528.72/13,443,366.17
  6. Step 6: Final answer
    x = 10,546,116.32

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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.