Home / 21,556,309.80-32,334,464.70-20,280,851.40

Finding the Fourth Proportional to 21,556,309.80, 32,334,464.70 and 20,280,851.40

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Solution

The fourth proportional to 21,556,309.80, 32,334,464.70 and 20,280,851.40 is: 30,421,277.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,556,309.80 : 32,334,464.70 = 20,280,851.40 : x
  2. Step 2: Convert to fraction form
    21,556,309.80/32,334,464.70 = 20,280,851.40/x
  3. Step 3: Cross multiply
    21,556,309.80x = 32,334,464.70 × 20,280,851.40
  4. Step 4: Simplify right side
    21,556,309.80x = 655,770,473,679,245.50
  5. Step 5: Solve for x
    x = 655,770,473,679,245.50/21,556,309.80
  6. Step 6: Final answer
    x = 30,421,277.10

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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.