Home / 12,730,091.80-19,095,137.70-7,691,243.80

Finding the Fourth Proportional to 12,730,091.80, 19,095,137.70 and 7,691,243.80

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Solution

The fourth proportional to 12,730,091.80, 19,095,137.70 and 7,691,243.80 is: 11,536,865.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,730,091.80 : 19,095,137.70 = 7,691,243.80 : x
  2. Step 2: Convert to fraction form
    12,730,091.80/19,095,137.70 = 7,691,243.80/x
  3. Step 3: Cross multiply
    12,730,091.80x = 19,095,137.70 × 7,691,243.80
  4. Step 4: Simplify right side
    12,730,091.80x = 146,865,359,445,271.25
  5. Step 5: Solve for x
    x = 146,865,359,445,271.25/12,730,091.80
  6. Step 6: Final answer
    x = 11,536,865.70

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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.