Home / 10,780,015.40-16,170,023.10-5,111,311.40

Finding the Fourth Proportional to 10,780,015.40, 16,170,023.10 and 5,111,311.40

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Solution

The fourth proportional to 10,780,015.40, 16,170,023.10 and 5,111,311.40 is: 7,666,967.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780,015.40 : 16,170,023.10 = 5,111,311.40 : x
  2. Step 2: Convert to fraction form
    10,780,015.40/16,170,023.10 = 5,111,311.40/x
  3. Step 3: Cross multiply
    10,780,015.40x = 16,170,023.10 × 5,111,311.40
  4. Step 4: Simplify right side
    10,780,015.40x = 82,650,023,409,293.34
  5. Step 5: Solve for x
    x = 82,650,023,409,293.34/10,780,015.40
  6. Step 6: Final answer
    x = 7,666,967.10

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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.