Home / 13,301,705.08-18,356,344.90-7,190,133.58

Finding the Fourth Proportional to 13,301,705.08, 18,356,344.90 and 7,190,133.58

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Solution

The fourth proportional to 13,301,705.08, 18,356,344.90 and 7,190,133.58 is: 9,922,379.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,301,705.08 : 18,356,344.90 = 7,190,133.58 : x
  2. Step 2: Convert to fraction form
    13,301,705.08/18,356,344.90 = 7,190,133.58/x
  3. Step 3: Cross multiply
    13,301,705.08x = 18,356,344.90 × 7,190,133.58
  4. Step 4: Simplify right side
    13,301,705.08x = 131,984,571,871,551.73
  5. Step 5: Solve for x
    x = 131,984,571,871,551.73/13,301,705.08
  6. Step 6: Final answer
    x = 9,922,379.96

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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.