Home / 5,185,810.80-7,778,716.20-4,920,090.30

Finding the Fourth Proportional to 5,185,810.80, 7,778,716.20 and 4,920,090.30

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Solution

The fourth proportional to 5,185,810.80, 7,778,716.20 and 4,920,090.30 is: 7,380,135.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185,810.80 : 7,778,716.20 = 4,920,090.30 : x
  2. Step 2: Convert to fraction form
    5,185,810.80/7,778,716.20 = 4,920,090.30/x
  3. Step 3: Cross multiply
    5,185,810.80x = 7,778,716.20 × 4,920,090.30
  4. Step 4: Simplify right side
    5,185,810.80x = 38,271,986,122,072.86
  5. Step 5: Solve for x
    x = 38,271,986,122,072.86/5,185,810.80
  6. Step 6: Final answer
    x = 7,380,135.45

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Double scale
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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.