Home / 13,860,117.48-20,775,515.50-5,220,479.69

Finding the Fourth Proportional to 13,860,117.48, 20,775,515.50 and 5,220,479.69

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Solution

The fourth proportional to 13,860,117.48, 20,775,515.50 and 5,220,479.69 is: 7,825,197.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,860,117.48 : 20,775,515.50 = 5,220,479.69 : x
  2. Step 2: Convert to fraction form
    13,860,117.48/20,775,515.50 = 5,220,479.69/x
  3. Step 3: Cross multiply
    13,860,117.48x = 20,775,515.50 × 5,220,479.69
  4. Step 4: Simplify right side
    13,860,117.48x = 108,458,156,717,030.20
  5. Step 5: Solve for x
    x = 108,458,156,717,030.20/13,860,117.48
  6. Step 6: Final answer
    x = 7,825,197.50

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1.5x scale

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.