Home / 20,480,546.70-28,264,012.65-11,778,725.21

Finding the Fourth Proportional to 20,480,546.70, 28,264,012.65 and 11,778,725.21

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Solution

The fourth proportional to 20,480,546.70, 28,264,012.65 and 11,778,725.21 is: 16,255,134.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,480,546.70 : 28,264,012.65 = 11,778,725.21 : x
  2. Step 2: Convert to fraction form
    20,480,546.70/28,264,012.65 = 11,778,725.21/x
  3. Step 3: Cross multiply
    20,480,546.70x = 28,264,012.65 × 11,778,725.21
  4. Step 4: Simplify right side
    20,480,546.70x = 332,914,038,194,993.81
  5. Step 5: Solve for x
    x = 332,914,038,194,993.81/20,480,546.70
  6. Step 6: Final answer
    x = 16,255,134.35

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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.