Home / 10,920,003.40-16,380,005.10-10,778,285.80

Finding the Fourth Proportional to 10,920,003.40, 16,380,005.10 and 10,778,285.80

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Solution

The fourth proportional to 10,920,003.40, 16,380,005.10 and 10,778,285.80 is: 16,167,428.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,920,003.40 : 16,380,005.10 = 10,778,285.80 : x
  2. Step 2: Convert to fraction form
    10,920,003.40/16,380,005.10 = 10,778,285.80/x
  3. Step 3: Cross multiply
    10,920,003.40x = 16,380,005.10 × 10,778,285.80
  4. Step 4: Simplify right side
    10,920,003.40x = 176,548,376,373,257.59
  5. Step 5: Solve for x
    x = 176,548,376,373,257.59/10,920,003.40
  6. Step 6: Final answer
    x = 16,167,428.70

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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.