Home / 13,701,099.17-18,907,532.53-7,421,639.38

Finding the Fourth Proportional to 13,701,099.17, 18,907,532.53 and 7,421,639.38

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Solution

The fourth proportional to 13,701,099.17, 18,907,532.53 and 7,421,639.38 is: 10,241,870.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,701,099.17 : 18,907,532.53 = 7,421,639.38 : x
  2. Step 2: Convert to fraction form
    13,701,099.17/18,907,532.53 = 7,421,639.38/x
  3. Step 3: Cross multiply
    13,701,099.17x = 18,907,532.53 × 7,421,639.38
  4. Step 4: Simplify right side
    13,701,099.17x = 140,324,887,937,456.11
  5. Step 5: Solve for x
    x = 140,324,887,937,456.11/13,701,099.17
  6. Step 6: Final answer
    x = 10,241,870.83

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1.5x scale

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.