Home / 13,137,330.60-19,705,995.90-12,393,313.20

Finding the Fourth Proportional to 13,137,330.60, 19,705,995.90 and 12,393,313.20

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Solution

The fourth proportional to 13,137,330.60, 19,705,995.90 and 12,393,313.20 is: 18,589,969.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,137,330.60 : 19,705,995.90 = 12,393,313.20 : x
  2. Step 2: Convert to fraction form
    13,137,330.60/19,705,995.90 = 12,393,313.20/x
  3. Step 3: Cross multiply
    13,137,330.60x = 19,705,995.90 × 12,393,313.20
  4. Step 4: Simplify right side
    13,137,330.60x = 244,222,579,106,615.84
  5. Step 5: Solve for x
    x = 244,222,579,106,615.84/13,137,330.60
  6. Step 6: Final answer
    x = 18,589,969.80

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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.