Home / 12,513,268.80-18,755,906.40-7,124,500.80

Finding the Fourth Proportional to 12,513,268.80, 18,755,906.40 and 7,124,500.80

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Solution

The fourth proportional to 12,513,268.80, 18,755,906.40 and 7,124,500.80 is: 10,678,782.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,513,268.80 : 18,755,906.40 = 7,124,500.80 : x
  2. Step 2: Convert to fraction form
    12,513,268.80/18,755,906.40 = 7,124,500.80/x
  3. Step 3: Cross multiply
    12,513,268.80x = 18,755,906.40 × 7,124,500.80
  4. Step 4: Simplify right side
    12,513,268.80x = 133,626,470,151,525.11
  5. Step 5: Solve for x
    x = 133,626,470,151,525.11/12,513,268.80
  6. Step 6: Final answer
    x = 10,678,782.04

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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.