Home / 21,303,011.60-31,954,517.40-13,650,261.20

Finding the Fourth Proportional to 21,303,011.60, 31,954,517.40 and 13,650,261.20

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Solution

The fourth proportional to 21,303,011.60, 31,954,517.40 and 13,650,261.20 is: 20,475,391.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,303,011.60 : 31,954,517.40 = 13,650,261.20 : x
  2. Step 2: Convert to fraction form
    21,303,011.60/31,954,517.40 = 13,650,261.20/x
  3. Step 3: Cross multiply
    21,303,011.60x = 31,954,517.40 × 13,650,261.20
  4. Step 4: Simplify right side
    21,303,011.60x = 436,187,509,029,944.81
  5. Step 5: Solve for x
    x = 436,187,509,029,944.81/21,303,011.60
  6. Step 6: Final answer
    x = 20,475,391.80

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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.