Home / 21,312,097.20-31,968,145.80-19,548,500.40

Finding the Fourth Proportional to 21,312,097.20, 31,968,145.80 and 19,548,500.40

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Solution

The fourth proportional to 21,312,097.20, 31,968,145.80 and 19,548,500.40 is: 29,322,750.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,312,097.20 : 31,968,145.80 = 19,548,500.40 : x
  2. Step 2: Convert to fraction form
    21,312,097.20/31,968,145.80 = 19,548,500.40/x
  3. Step 3: Cross multiply
    21,312,097.20x = 31,968,145.80 × 19,548,500.40
  4. Step 4: Simplify right side
    21,312,097.20x = 624,929,310,958,558.25
  5. Step 5: Solve for x
    x = 624,929,310,958,558.25/21,312,097.20
  6. Step 6: Final answer
    x = 29,322,750.60

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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.