Home / 13,021,403.20-19,532,104.80-12,357,851.20

Finding the Fourth Proportional to 13,021,403.20, 19,532,104.80 and 12,357,851.20

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Solution

The fourth proportional to 13,021,403.20, 19,532,104.80 and 12,357,851.20 is: 18,536,776.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,021,403.20 : 19,532,104.80 = 12,357,851.20 : x
  2. Step 2: Convert to fraction form
    13,021,403.20/19,532,104.80 = 12,357,851.20/x
  3. Step 3: Cross multiply
    13,021,403.20x = 19,532,104.80 × 12,357,851.20
  4. Step 4: Simplify right side
    13,021,403.20x = 241,374,844,741,205.75
  5. Step 5: Solve for x
    x = 241,374,844,741,205.75/13,021,403.20
  6. Step 6: Final answer
    x = 18,536,776.80

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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.