Home / 10,721,865.69-16,083,177.36-3,434,378.43

Finding the Fourth Proportional to 10,721,865.69, 16,083,177.36 and 3,434,378.43

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Solution

The fourth proportional to 10,721,865.69, 16,083,177.36 and 3,434,378.43 is: 5,151,688.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,721,865.69 : 16,083,177.36 = 3,434,378.43 : x
  2. Step 2: Convert to fraction form
    10,721,865.69/16,083,177.36 = 3,434,378.43/x
  3. Step 3: Cross multiply
    10,721,865.69x = 16,083,177.36 × 3,434,378.43
  4. Step 4: Simplify right side
    10,721,865.69x = 55,235,717,411,048.34
  5. Step 5: Solve for x
    x = 55,235,717,411,048.34/10,721,865.69
  6. Step 6: Final answer
    x = 5,151,688.99

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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.