Home / 31,916,957.76-47,880,161.28-11,720,625.12

Finding the Fourth Proportional to 31,916,957.76, 47,880,161.28 and 11,720,625.12

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Solution

The fourth proportional to 31,916,957.76, 47,880,161.28 and 11,720,625.12 is: 17,582,672.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,916,957.76 : 47,880,161.28 = 11,720,625.12 : x
  2. Step 2: Convert to fraction form
    31,916,957.76/47,880,161.28 = 11,720,625.12/x
  3. Step 3: Cross multiply
    31,916,957.76x = 47,880,161.28 × 11,720,625.12
  4. Step 4: Simplify right side
    31,916,957.76x = 561,185,421,048,019.31
  5. Step 5: Solve for x
    x = 561,185,421,048,019.31/31,916,957.76
  6. Step 6: Final answer
    x = 17,582,672.67

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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.