Home / 15,247,929.61-21,042,142.97-8,372,411.67

Finding the Fourth Proportional to 15,247,929.61, 21,042,142.97 and 8,372,411.67

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Solution

The fourth proportional to 15,247,929.61, 21,042,142.97 and 8,372,411.67 is: 11,553,928.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,247,929.61 : 21,042,142.97 = 8,372,411.67 : x
  2. Step 2: Convert to fraction form
    15,247,929.61/21,042,142.97 = 8,372,411.67/x
  3. Step 3: Cross multiply
    15,247,929.61x = 21,042,142.97 × 8,372,411.67
  4. Step 4: Simplify right side
    15,247,929.61x = 176,173,483,363,836.44
  5. Step 5: Solve for x
    x = 176,173,483,363,836.44/15,247,929.61
  6. Step 6: Final answer
    x = 11,553,928.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.