Home / 15,247,947.98-21,042,168.36-8,372,430.20

Finding the Fourth Proportional to 15,247,947.98, 21,042,168.36 and 8,372,430.20

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Solution

The fourth proportional to 15,247,947.98, 21,042,168.36 and 8,372,430.20 is: 11,553,953.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,247,947.98 : 21,042,168.36 = 8,372,430.20 : x
  2. Step 2: Convert to fraction form
    15,247,947.98/21,042,168.36 = 8,372,430.20/x
  3. Step 3: Cross multiply
    15,247,947.98x = 21,042,168.36 × 8,372,430.20
  4. Step 4: Simplify right side
    15,247,947.98x = 176,174,085,850,748.47
  5. Step 5: Solve for x
    x = 176,174,085,850,748.47/15,247,947.98
  6. Step 6: Final answer
    x = 11,553,953.76

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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.