Home / 11,129,623.44-15,373,287.72-9,203,663.76

Finding the Fourth Proportional to 11,129,623.44, 15,373,287.72 and 9,203,663.76

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Solution

The fourth proportional to 11,129,623.44, 15,373,287.72 and 9,203,663.76 is: 12,712,970.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,129,623.44 : 15,373,287.72 = 9,203,663.76 : x
  2. Step 2: Convert to fraction form
    11,129,623.44/15,373,287.72 = 9,203,663.76/x
  3. Step 3: Cross multiply
    11,129,623.44x = 15,373,287.72 × 9,203,663.76
  4. Step 4: Simplify right side
    11,129,623.44x = 141,490,571,060,617.03
  5. Step 5: Solve for x
    x = 141,490,571,060,617.03/11,129,623.44
  6. Step 6: Final answer
    x = 12,712,970.19

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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.