Home / 12,999,665.70-19,499,498.55-9,220,529.70

Finding the Fourth Proportional to 12,999,665.70, 19,499,498.55 and 9,220,529.70

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Solution

The fourth proportional to 12,999,665.70, 19,499,498.55 and 9,220,529.70 is: 13,830,794.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,999,665.70 : 19,499,498.55 = 9,220,529.70 : x
  2. Step 2: Convert to fraction form
    12,999,665.70/19,499,498.55 = 9,220,529.70/x
  3. Step 3: Cross multiply
    12,999,665.70x = 19,499,498.55 × 9,220,529.70
  4. Step 4: Simplify right side
    12,999,665.70x = 179,795,705,515,381.94
  5. Step 5: Solve for x
    x = 179,795,705,515,381.94/12,999,665.70
  6. Step 6: Final answer
    x = 13,830,794.55

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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.