Home / 13,980,663.56-20,963,981.96-8,146,739

Finding the Fourth Proportional to 13,980,663.56, 20,963,981.96 and 8,146,739

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Solution

The fourth proportional to 13,980,663.56, 20,963,981.96 and 8,146,739 is: 12,216,021.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,980,663.56 : 20,963,981.96 = 8,146,739 : x
  2. Step 2: Convert to fraction form
    13,980,663.56/20,963,981.96 = 8,146,739/x
  3. Step 3: Cross multiply
    13,980,663.56x = 20,963,981.96 × 8,146,739
  4. Step 4: Simplify right side
    13,980,663.56x = 170,788,089,428,828.44
  5. Step 5: Solve for x
    x = 170,788,089,428,828.44/13,980,663.56
  6. Step 6: Final answer
    x = 12,216,021.70

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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.