Home / 20,146,998.60-30,220,497.90-18,951,256.35

Finding the Fourth Proportional to 20,146,998.60, 30,220,497.90 and 18,951,256.35

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Solution

The fourth proportional to 20,146,998.60, 30,220,497.90 and 18,951,256.35 is: 28,426,884.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,146,998.60 : 30,220,497.90 = 18,951,256.35 : x
  2. Step 2: Convert to fraction form
    20,146,998.60/30,220,497.90 = 18,951,256.35/x
  3. Step 3: Cross multiply
    20,146,998.60x = 30,220,497.90 × 18,951,256.35
  4. Step 4: Simplify right side
    20,146,998.60x = 572,716,402,727,536.62
  5. Step 5: Solve for x
    x = 572,716,402,727,536.62/20,146,998.60
  6. Step 6: Final answer
    x = 28,426,884.53

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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.