Home / 13,019,331.28-17,968,537.16-7,219,402.96

Finding the Fourth Proportional to 13,019,331.28, 17,968,537.16 and 7,219,402.96

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Solution

The fourth proportional to 13,019,331.28, 17,968,537.16 and 7,219,402.96 is: 9,963,807.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,019,331.28 : 17,968,537.16 = 7,219,402.96 : x
  2. Step 2: Convert to fraction form
    13,019,331.28/17,968,537.16 = 7,219,402.96/x
  3. Step 3: Cross multiply
    13,019,331.28x = 17,968,537.16 × 7,219,402.96
  4. Step 4: Simplify right side
    13,019,331.28x = 129,722,110,359,774
  5. Step 5: Solve for x
    x = 129,722,110,359,774/13,019,331.28
  6. Step 6: Final answer
    x = 9,963,807.48

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1.5x scale

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.