Home / 13,990,491.51-20,960,161.51-10,142,784.55

Finding the Fourth Proportional to 13,990,491.51, 20,960,161.51 and 10,142,784.55

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Solution

The fourth proportional to 13,990,491.51, 20,960,161.51 and 10,142,784.55 is: 15,195,634.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,990,491.51 : 20,960,161.51 = 10,142,784.55 : x
  2. Step 2: Convert to fraction form
    13,990,491.51/20,960,161.51 = 10,142,784.55/x
  3. Step 3: Cross multiply
    13,990,491.51x = 20,960,161.51 × 10,142,784.55
  4. Step 4: Simplify right side
    13,990,491.51x = 212,594,402,329,132.69
  5. Step 5: Solve for x
    x = 212,594,402,329,132.69/13,990,491.51
  6. Step 6: Final answer
    x = 15,195,634.99

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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.