Home / 13,301,728.56-18,356,377.08-7,190,157.06

Finding the Fourth Proportional to 13,301,728.56, 18,356,377.08 and 7,190,157.06

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Solution

The fourth proportional to 13,301,728.56, 18,356,377.08 and 7,190,157.06 is: 9,922,412.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,301,728.56 : 18,356,377.08 = 7,190,157.06 : x
  2. Step 2: Convert to fraction form
    13,301,728.56/18,356,377.08 = 7,190,157.06/x
  3. Step 3: Cross multiply
    13,301,728.56x = 18,356,377.08 × 7,190,157.06
  4. Step 4: Simplify right side
    13,301,728.56x = 131,985,234,257,784.17
  5. Step 5: Solve for x
    x = 131,985,234,257,784.17/13,301,728.56
  6. Step 6: Final answer
    x = 9,922,412.24

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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.