Home / 7,158,796-9,879,140.10-3,939,532

Finding the Fourth Proportional to 7,158,796, 9,879,140.10 and 3,939,532

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Solution

The fourth proportional to 7,158,796, 9,879,140.10 and 3,939,532 is: 5,436,555.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,158,796 : 9,879,140.10 = 3,939,532 : x
  2. Step 2: Convert to fraction form
    7,158,796/9,879,140.10 = 3,939,532/x
  3. Step 3: Cross multiply
    7,158,796x = 9,879,140.10 × 3,939,532
  4. Step 4: Simplify right side
    7,158,796x = 38,919,188,556,433.20
  5. Step 5: Solve for x
    x = 38,919,188,556,433.20/7,158,796
  6. Step 6: Final answer
    x = 5,436,555.05

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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.