Home / 21,665,162.71-29,898,285.87-11,742,362.20

Finding the Fourth Proportional to 21,665,162.71, 29,898,285.87 and 11,742,362.20

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Solution

The fourth proportional to 21,665,162.71, 29,898,285.87 and 11,742,362.20 is: 16,204,655.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,665,162.71 : 29,898,285.87 = 11,742,362.20 : x
  2. Step 2: Convert to fraction form
    21,665,162.71/29,898,285.87 = 11,742,362.20/x
  3. Step 3: Cross multiply
    21,665,162.71x = 29,898,285.87 × 11,742,362.20
  4. Step 4: Simplify right side
    21,665,162.71x = 351,076,501,844,682.12
  5. Step 5: Solve for x
    x = 351,076,501,844,682.12/21,665,162.71
  6. Step 6: Final answer
    x = 16,204,655.67

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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.