Home / 10,021,031.40-15,005,783.09-6,942,639.40

Finding the Fourth Proportional to 10,021,031.40, 15,005,783.09 and 6,942,639.40

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Solution

The fourth proportional to 10,021,031.40, 15,005,783.09 and 6,942,639.40 is: 10,396,109.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,021,031.40 : 15,005,783.09 = 6,942,639.40 : x
  2. Step 2: Convert to fraction form
    10,021,031.40/15,005,783.09 = 6,942,639.40/x
  3. Step 3: Cross multiply
    10,021,031.40x = 15,005,783.09 × 6,942,639.40
  4. Step 4: Simplify right side
    10,021,031.40x = 104,179,740,888,329.88
  5. Step 5: Solve for x
    x = 104,179,740,888,329.88/10,021,031.40
  6. Step 6: Final answer
    x = 10,396,109.61

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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.