Home / 28,650,628.48-42,990,872.64-12,690,544

Finding the Fourth Proportional to 28,650,628.48, 42,990,872.64 and 12,690,544

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Solution

The fourth proportional to 28,650,628.48, 42,990,872.64 and 12,690,544 is: 19,042,429.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,650,628.48 : 42,990,872.64 = 12,690,544 : x
  2. Step 2: Convert to fraction form
    28,650,628.48/42,990,872.64 = 12,690,544/x
  3. Step 3: Cross multiply
    28,650,628.48x = 42,990,872.64 × 12,690,544
  4. Step 4: Simplify right side
    28,650,628.48x = 545,577,560,836,316.19
  5. Step 5: Solve for x
    x = 545,577,560,836,316.19/28,650,628.48
  6. Step 6: Final answer
    x = 19,042,429.08

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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.