Home / 13,990,495.75-20,960,167.88-10,142,788.81

Finding the Fourth Proportional to 13,990,495.75, 20,960,167.88 and 10,142,788.81

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Solution

The fourth proportional to 13,990,495.75, 20,960,167.88 and 10,142,788.81 is: 15,195,641.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,990,495.75 : 20,960,167.88 = 10,142,788.81 : x
  2. Step 2: Convert to fraction form
    13,990,495.75/20,960,167.88 = 10,142,788.81/x
  3. Step 3: Cross multiply
    13,990,495.75x = 20,960,167.88 × 10,142,788.81
  4. Step 4: Simplify right side
    13,990,495.75x = 212,594,556,178,271.50
  5. Step 5: Solve for x
    x = 212,594,556,178,271.50/13,990,495.75
  6. Step 6: Final answer
    x = 15,195,641.38

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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.