Home / 20,368,784.46-28,108,360.62-11,201,427.21

Finding the Fourth Proportional to 20,368,784.46, 28,108,360.62 and 11,201,427.21

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Solution

The fourth proportional to 20,368,784.46, 28,108,360.62 and 11,201,427.21 is: 15,457,660.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,368,784.46 : 28,108,360.62 = 11,201,427.21 : x
  2. Step 2: Convert to fraction form
    20,368,784.46/28,108,360.62 = 11,201,427.21/x
  3. Step 3: Cross multiply
    20,368,784.46x = 28,108,360.62 × 11,201,427.21
  4. Step 4: Simplify right side
    20,368,784.46x = 314,853,755,477,360.50
  5. Step 5: Solve for x
    x = 314,853,755,477,360.50/20,368,784.46
  6. Step 6: Final answer
    x = 15,457,660.52

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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.