Home / 12,730,090.80-19,095,136.20-7,691,242.80

Finding the Fourth Proportional to 12,730,090.80, 19,095,136.20 and 7,691,242.80

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Solution

The fourth proportional to 12,730,090.80, 19,095,136.20 and 7,691,242.80 is: 11,536,864.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,730,090.80 : 19,095,136.20 = 7,691,242.80 : x
  2. Step 2: Convert to fraction form
    12,730,090.80/19,095,136.20 = 7,691,242.80/x
  3. Step 3: Cross multiply
    12,730,090.80x = 19,095,136.20 × 7,691,242.80
  4. Step 4: Simplify right side
    12,730,090.80x = 146,865,328,813,269.34
  5. Step 5: Solve for x
    x = 146,865,328,813,269.34/12,730,090.80
  6. Step 6: Final answer
    x = 11,536,864.20

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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.