Home / 28,693,891.49-39,597,247.90-15,640,864.00

Finding the Fourth Proportional to 28,693,891.49, 39,597,247.90 and 15,640,864.00

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Solution

The fourth proportional to 28,693,891.49, 39,597,247.90 and 15,640,864.00 is: 21,584,216.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,693,891.49 : 39,597,247.90 = 15,640,864.00 : x
  2. Step 2: Convert to fraction form
    28,693,891.49/39,597,247.90 = 15,640,864.00/x
  3. Step 3: Cross multiply
    28,693,891.49x = 39,597,247.90 × 15,640,864.00
  4. Step 4: Simplify right side
    28,693,891.49x = 619,335,169,010,763.75
  5. Step 5: Solve for x
    x = 619,335,169,010,763.75/28,693,891.49
  6. Step 6: Final answer
    x = 21,584,216.60

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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.