Home / 13,457,328.25-18,570,876-7,655,986.33

Finding the Fourth Proportional to 13,457,328.25, 18,570,876 and 7,655,986.33

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Solution

The fourth proportional to 13,457,328.25, 18,570,876 and 7,655,986.33 is: 10,565,126.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,457,328.25 : 18,570,876 = 7,655,986.33 : x
  2. Step 2: Convert to fraction form
    13,457,328.25/18,570,876 = 7,655,986.33/x
  3. Step 3: Cross multiply
    13,457,328.25x = 18,570,876 × 7,655,986.33
  4. Step 4: Simplify right side
    13,457,328.25x = 142,178,372,792,125.09
  5. Step 5: Solve for x
    x = 142,178,372,792,125.09/13,457,328.25
  6. Step 6: Final answer
    x = 10,565,126.31

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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.