Home / 20,337,900.16-28,068,033.12-11,518,920.24

Finding the Fourth Proportional to 20,337,900.16, 28,068,033.12 and 11,518,920.24

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Solution

The fourth proportional to 20,337,900.16, 28,068,033.12 and 11,518,920.24 is: 15,897,090.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,337,900.16 : 28,068,033.12 = 11,518,920.24 : x
  2. Step 2: Convert to fraction form
    20,337,900.16/28,068,033.12 = 11,518,920.24/x
  3. Step 3: Cross multiply
    20,337,900.16x = 28,068,033.12 × 11,518,920.24
  4. Step 4: Simplify right side
    20,337,900.16x = 323,313,434,802,958.38
  5. Step 5: Solve for x
    x = 323,313,434,802,958.38/20,337,900.16
  6. Step 6: Final answer
    x = 15,897,090.27

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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.