Home / 21,987,020.49-30,342,124.02-12,197,464.91

Finding the Fourth Proportional to 21,987,020.49, 30,342,124.02 and 12,197,464.91

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Solution

The fourth proportional to 21,987,020.49, 30,342,124.02 and 12,197,464.91 is: 16,832,521.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,987,020.49 : 30,342,124.02 = 12,197,464.91 : x
  2. Step 2: Convert to fraction form
    21,987,020.49/30,342,124.02 = 12,197,464.91/x
  3. Step 3: Cross multiply
    21,987,020.49x = 30,342,124.02 × 12,197,464.91
  4. Step 4: Simplify right side
    21,987,020.49x = 370,096,993,028,818.12
  5. Step 5: Solve for x
    x = 370,096,993,028,818.12/21,987,020.49
  6. Step 6: Final answer
    x = 16,832,521.40

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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.