Home / 8,512,005.80-12,768,008.70-5,326,956.20

Finding the Fourth Proportional to 8,512,005.80, 12,768,008.70 and 5,326,956.20

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Solution

The fourth proportional to 8,512,005.80, 12,768,008.70 and 5,326,956.20 is: 7,990,434.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,512,005.80 : 12,768,008.70 = 5,326,956.20 : x
  2. Step 2: Convert to fraction form
    8,512,005.80/12,768,008.70 = 5,326,956.20/x
  3. Step 3: Cross multiply
    8,512,005.80x = 12,768,008.70 × 5,326,956.20
  4. Step 4: Simplify right side
    8,512,005.80x = 68,014,623,106,118.94
  5. Step 5: Solve for x
    x = 68,014,623,106,118.94/8,512,005.80
  6. Step 6: Final answer
    x = 7,990,434.30

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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.