Home / 7,186,979.60-10,782,024.60-2,138,800.40

Finding the Fourth Proportional to 7,186,979.60, 10,782,024.60 and 2,138,800.40

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Solution

The fourth proportional to 7,186,979.60, 10,782,024.60 and 2,138,800.40 is: 3,208,663.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,186,979.60 : 10,782,024.60 = 2,138,800.40 : x
  2. Step 2: Convert to fraction form
    7,186,979.60/10,782,024.60 = 2,138,800.40/x
  3. Step 3: Cross multiply
    7,186,979.60x = 10,782,024.60 × 2,138,800.40
  4. Step 4: Simplify right side
    7,186,979.60x = 23,060,598,527,289.84
  5. Step 5: Solve for x
    x = 23,060,598,527,289.84/7,186,979.60
  6. Step 6: Final answer
    x = 3,208,663.42

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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.