Home / 21,507,900.30-32,261,850.45-20,657,594.70

Finding the Fourth Proportional to 21,507,900.30, 32,261,850.45 and 20,657,594.70

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Solution

The fourth proportional to 21,507,900.30, 32,261,850.45 and 20,657,594.70 is: 30,986,392.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,507,900.30 : 32,261,850.45 = 20,657,594.70 : x
  2. Step 2: Convert to fraction form
    21,507,900.30/32,261,850.45 = 20,657,594.70/x
  3. Step 3: Cross multiply
    21,507,900.30x = 32,261,850.45 × 20,657,594.70
  4. Step 4: Simplify right side
    21,507,900.30x = 666,452,230,868,112.62
  5. Step 5: Solve for x
    x = 666,452,230,868,112.62/21,507,900.30
  6. Step 6: Final answer
    x = 30,986,392.05

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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.