Home / 20,500,419.96-28,289,158.74-11,332,341

Finding the Fourth Proportional to 20,500,419.96, 28,289,158.74 and 11,332,341

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Solution

The fourth proportional to 20,500,419.96, 28,289,158.74 and 11,332,341 is: 15,637,845.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,500,419.96 : 28,289,158.74 = 11,332,341 : x
  2. Step 2: Convert to fraction form
    20,500,419.96/28,289,158.74 = 11,332,341/x
  3. Step 3: Cross multiply
    20,500,419.96x = 28,289,158.74 × 11,332,341
  4. Step 4: Simplify right side
    20,500,419.96x = 320,582,393,444,810.31
  5. Step 5: Solve for x
    x = 320,582,393,444,810.31/20,500,419.96
  6. Step 6: Final answer
    x = 15,637,845.18

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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.