Home / 21,915,499.20-30,244,280.40-12,125,784.12

Finding the Fourth Proportional to 21,915,499.20, 30,244,280.40 and 12,125,784.12

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Solution

The fourth proportional to 21,915,499.20, 30,244,280.40 and 12,125,784.12 is: 16,734,075.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,915,499.20 : 30,244,280.40 = 12,125,784.12 : x
  2. Step 2: Convert to fraction form
    21,915,499.20/30,244,280.40 = 12,125,784.12/x
  3. Step 3: Cross multiply
    21,915,499.20x = 30,244,280.40 × 12,125,784.12
  4. Step 4: Simplify right side
    21,915,499.20x = 366,735,614,995,147.19
  5. Step 5: Solve for x
    x = 366,735,614,995,147.19/21,915,499.20
  6. Step 6: Final answer
    x = 16,734,075.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.