Home / 13,058,457.36-18,015,077.88-8,155,167.72

Finding the Fourth Proportional to 13,058,457.36, 18,015,077.88 and 8,155,167.72

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Solution

The fourth proportional to 13,058,457.36, 18,015,077.88 and 8,155,167.72 is: 11,250,638.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,058,457.36 : 18,015,077.88 = 8,155,167.72 : x
  2. Step 2: Convert to fraction form
    13,058,457.36/18,015,077.88 = 8,155,167.72/x
  3. Step 3: Cross multiply
    13,058,457.36x = 18,015,077.88 × 8,155,167.72
  4. Step 4: Simplify right side
    13,058,457.36x = 146,915,981,600,262.03
  5. Step 5: Solve for x
    x = 146,915,981,600,262.03/13,058,457.36
  6. Step 6: Final answer
    x = 11,250,638.38

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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.