Home / 15,743,497.52-21,725,148.12-8,678,862.80

Finding the Fourth Proportional to 15,743,497.52, 21,725,148.12 and 8,678,862.80

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Solution

The fourth proportional to 15,743,497.52, 21,725,148.12 and 8,678,862.80 is: 11,976,346.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,743,497.52 : 21,725,148.12 = 8,678,862.80 : x
  2. Step 2: Convert to fraction form
    15,743,497.52/21,725,148.12 = 8,678,862.80/x
  3. Step 3: Cross multiply
    15,743,497.52x = 21,725,148.12 × 8,678,862.80
  4. Step 4: Simplify right side
    15,743,497.52x = 188,549,579,843,157.97
  5. Step 5: Solve for x
    x = 188,549,579,843,157.97/15,743,497.52
  6. Step 6: Final answer
    x = 11,976,346.40

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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.