Home / 19,778,456.80-29,667,685.20-11,700,553.60

Finding the Fourth Proportional to 19,778,456.80, 29,667,685.20 and 11,700,553.60

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Solution

The fourth proportional to 19,778,456.80, 29,667,685.20 and 11,700,553.60 is: 17,550,830.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,778,456.80 : 29,667,685.20 = 11,700,553.60 : x
  2. Step 2: Convert to fraction form
    19,778,456.80/29,667,685.20 = 11,700,553.60/x
  3. Step 3: Cross multiply
    19,778,456.80x = 29,667,685.20 × 11,700,553.60
  4. Step 4: Simplify right side
    19,778,456.80x = 347,128,340,870,526.69
  5. Step 5: Solve for x
    x = 347,128,340,870,526.69/19,778,456.80
  6. Step 6: Final answer
    x = 17,550,830.40

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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.