Home / 18,792,057.40-28,188,086.10-11,580,206.20

Finding the Fourth Proportional to 18,792,057.40, 28,188,086.10 and 11,580,206.20

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Solution

The fourth proportional to 18,792,057.40, 28,188,086.10 and 11,580,206.20 is: 17,370,309.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,792,057.40 : 28,188,086.10 = 11,580,206.20 : x
  2. Step 2: Convert to fraction form
    18,792,057.40/28,188,086.10 = 11,580,206.20/x
  3. Step 3: Cross multiply
    18,792,057.40x = 28,188,086.10 × 11,580,206.20
  4. Step 4: Simplify right side
    18,792,057.40x = 326,423,849,421,353.81
  5. Step 5: Solve for x
    x = 326,423,849,421,353.81/18,792,057.40
  6. Step 6: Final answer
    x = 17,370,309.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.