Home / 13,471,303.20-20,206,954.80-7,788,602.40

Finding the Fourth Proportional to 13,471,303.20, 20,206,954.80 and 7,788,602.40

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Solution

The fourth proportional to 13,471,303.20, 20,206,954.80 and 7,788,602.40 is: 11,682,903.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,471,303.20 : 20,206,954.80 = 7,788,602.40 : x
  2. Step 2: Convert to fraction form
    13,471,303.20/20,206,954.80 = 7,788,602.40/x
  3. Step 3: Cross multiply
    13,471,303.20x = 20,206,954.80 × 7,788,602.40
  4. Step 4: Simplify right side
    13,471,303.20x = 157,383,936,651,971.53
  5. Step 5: Solve for x
    x = 157,383,936,651,971.53/13,471,303.20
  6. Step 6: Final answer
    x = 11,682,903.60

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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.