Home / 12,260,649.96-16,920,221.76-6,828,141.96

Finding the Fourth Proportional to 12,260,649.96, 16,920,221.76 and 6,828,141.96

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Solution

The fourth proportional to 12,260,649.96, 16,920,221.76 and 6,828,141.96 is: 9,423,128.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,260,649.96 : 16,920,221.76 = 6,828,141.96 : x
  2. Step 2: Convert to fraction form
    12,260,649.96/16,920,221.76 = 6,828,141.96/x
  3. Step 3: Cross multiply
    12,260,649.96x = 16,920,221.76 × 6,828,141.96
  4. Step 4: Simplify right side
    12,260,649.96x = 115,533,676,171,961.06
  5. Step 5: Solve for x
    x = 115,533,676,171,961.06/12,260,649.96
  6. Step 6: Final answer
    x = 9,423,128.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.