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Finding the Third Proportional to 129,528,188 and 280,579,768

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Solution

The third proportional to 129,528,188 and 280,579,768 is: 607,782,811.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,528,188 : 280,579,768 = 280,579,768 : x
  2. Step 2: Convert to fraction form
    129,528,188/280,579,768 = 280,579,768/x
  3. Step 3: Cross multiply
    129,528,188x = 280,579,768 × 280,579,768
  4. Step 4: Simplify right side
    129,528,188x = 78,725,006,210,933,824
  5. Step 5: Solve for x
    x = 78,725,006,210,933,824/129,528,188
  6. Step 6: Final answer
    x = 607,782,811.04

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.