Home / 10,078,571.41-15,108,904.95-3,929,135.65

Finding the Fourth Proportional to 10,078,571.41, 15,108,904.95 and 3,929,135.65

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Solution

The fourth proportional to 10,078,571.41, 15,108,904.95 and 3,929,135.65 is: 5,890,213.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,078,571.41 : 15,108,904.95 = 3,929,135.65 : x
  2. Step 2: Convert to fraction form
    10,078,571.41/15,108,904.95 = 3,929,135.65/x
  3. Step 3: Cross multiply
    10,078,571.41x = 15,108,904.95 × 3,929,135.65
  4. Step 4: Simplify right side
    10,078,571.41x = 59,364,937,071,506.46
  5. Step 5: Solve for x
    x = 59,364,937,071,506.46/10,078,571.41
  6. Step 6: Final answer
    x = 5,890,213.47

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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.