Home / 15,702,415.92-21,666,128.13-9,174,784.14

Finding the Fourth Proportional to 15,702,415.92, 21,666,128.13 and 9,174,784.14

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Solution

The fourth proportional to 15,702,415.92, 21,666,128.13 and 9,174,784.14 is: 12,659,328.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,702,415.92 : 21,666,128.13 = 9,174,784.14 : x
  2. Step 2: Convert to fraction form
    15,702,415.92/21,666,128.13 = 9,174,784.14/x
  3. Step 3: Cross multiply
    15,702,415.92x = 21,666,128.13 × 9,174,784.14
  4. Step 4: Simplify right side
    15,702,415.92x = 198,782,048,742,331.88
  5. Step 5: Solve for x
    x = 198,782,048,742,331.88/15,702,415.92
  6. Step 6: Final answer
    x = 12,659,328.97

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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.