Home / 12,529,565.80-18,781,907.10-5,786,218.60

Finding the Fourth Proportional to 12,529,565.80, 18,781,907.10 and 5,786,218.60

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Solution

The fourth proportional to 12,529,565.80, 18,781,907.10 and 5,786,218.60 is: 8,673,582.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,529,565.80 : 18,781,907.10 = 5,786,218.60 : x
  2. Step 2: Convert to fraction form
    12,529,565.80/18,781,907.10 = 5,786,218.60/x
  3. Step 3: Cross multiply
    12,529,565.80x = 18,781,907.10 × 5,786,218.60
  4. Step 4: Simplify right side
    12,529,565.80x = 108,676,220,205,492.06
  5. Step 5: Solve for x
    x = 108,676,220,205,492.06/12,529,565.80
  6. Step 6: Final answer
    x = 8,673,582.30

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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.