Home / 13,116,705.52-18,102,471.96-7,960,284.40

Finding the Fourth Proportional to 13,116,705.52, 18,102,471.96 and 7,960,284.40

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Solution

The fourth proportional to 13,116,705.52, 18,102,471.96 and 7,960,284.40 is: 10,986,053.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,116,705.52 : 18,102,471.96 = 7,960,284.40 : x
  2. Step 2: Convert to fraction form
    13,116,705.52/18,102,471.96 = 7,960,284.40/x
  3. Step 3: Cross multiply
    13,116,705.52x = 18,102,471.96 × 7,960,284.40
  4. Step 4: Simplify right side
    13,116,705.52x = 144,100,825,144,625.44
  5. Step 5: Solve for x
    x = 144,100,825,144,625.44/13,116,705.52
  6. Step 6: Final answer
    x = 10,986,053.24

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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.