Home / 12,730,101.80-19,095,152.70-7,691,253.80

Finding the Fourth Proportional to 12,730,101.80, 19,095,152.70 and 7,691,253.80

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Solution

The fourth proportional to 12,730,101.80, 19,095,152.70 and 7,691,253.80 is: 11,536,880.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,730,101.80 : 19,095,152.70 = 7,691,253.80 : x
  2. Step 2: Convert to fraction form
    12,730,101.80/19,095,152.70 = 7,691,253.80/x
  3. Step 3: Cross multiply
    12,730,101.80x = 19,095,152.70 × 7,691,253.80
  4. Step 4: Simplify right side
    12,730,101.80x = 146,865,665,765,455.25
  5. Step 5: Solve for x
    x = 146,865,665,765,455.25/12,730,101.80
  6. Step 6: Final answer
    x = 11,536,880.70

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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.