Home / 12,913,548.35-17,821,505.66-7,112,328.75

Finding the Fourth Proportional to 12,913,548.35, 17,821,505.66 and 7,112,328.75

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Solution

The fourth proportional to 12,913,548.35, 17,821,505.66 and 7,112,328.75 is: 9,815,459.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,913,548.35 : 17,821,505.66 = 7,112,328.75 : x
  2. Step 2: Convert to fraction form
    12,913,548.35/17,821,505.66 = 7,112,328.75/x
  3. Step 3: Cross multiply
    12,913,548.35x = 17,821,505.66 × 7,112,328.75
  4. Step 4: Simplify right side
    12,913,548.35x = 126,752,407,038,344.09
  5. Step 5: Solve for x
    x = 126,752,407,038,344.09/12,913,548.35
  6. Step 6: Final answer
    x = 9,815,459.21

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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.