Home / 28,650,624.48-42,990,866.64-12,690,540

Finding the Fourth Proportional to 28,650,624.48, 42,990,866.64 and 12,690,540

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Solution

The fourth proportional to 28,650,624.48, 42,990,866.64 and 12,690,540 is: 19,042,423.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,650,624.48 : 42,990,866.64 = 12,690,540 : x
  2. Step 2: Convert to fraction form
    28,650,624.48/42,990,866.64 = 12,690,540/x
  3. Step 3: Cross multiply
    28,650,624.48x = 42,990,866.64 × 12,690,540
  4. Step 4: Simplify right side
    28,650,624.48x = 545,577,312,729,585.62
  5. Step 5: Solve for x
    x = 545,577,312,729,585.62/28,650,624.48
  6. Step 6: Final answer
    x = 19,042,423.08

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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.