Home / 21,987,222.15-30,342,402.99-12,197,666.64

Finding the Fourth Proportional to 21,987,222.15, 30,342,402.99 and 12,197,666.64

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Solution

The fourth proportional to 21,987,222.15, 30,342,402.99 and 12,197,666.64 is: 16,832,800.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,987,222.15 : 30,342,402.99 = 12,197,666.64 : x
  2. Step 2: Convert to fraction form
    21,987,222.15/30,342,402.99 = 12,197,666.64/x
  3. Step 3: Cross multiply
    21,987,222.15x = 30,342,402.99 × 12,197,666.64
  4. Step 4: Simplify right side
    21,987,222.15x = 370,106,516,728,559.25
  5. Step 5: Solve for x
    x = 370,106,516,728,559.25/21,987,222.15
  6. Step 6: Final answer
    x = 16,832,800.17

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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.