Home / 5,390,259.80-8,085,389.70-4,185,660.20

Finding the Fourth Proportional to 5,390,259.80, 8,085,389.70 and 4,185,660.20

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Solution

The fourth proportional to 5,390,259.80, 8,085,389.70 and 4,185,660.20 is: 6,278,490.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390,259.80 : 8,085,389.70 = 4,185,660.20 : x
  2. Step 2: Convert to fraction form
    5,390,259.80/8,085,389.70 = 4,185,660.20/x
  3. Step 3: Cross multiply
    5,390,259.80x = 8,085,389.70 × 4,185,660.20
  4. Step 4: Simplify right side
    5,390,259.80x = 33,842,693,868,779.94
  5. Step 5: Solve for x
    x = 33,842,693,868,779.94/5,390,259.80
  6. Step 6: Final answer
    x = 6,278,490.30

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Similar ratio
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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.