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Finding the Third Proportional to 58,689,210 and 128,715,828

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Solution

The third proportional to 58,689,210 and 128,715,828 is: 282,296,598.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,689,210 : 128,715,828 = 128,715,828 : x
  2. Step 2: Convert to fraction form
    58,689,210/128,715,828 = 128,715,828/x
  3. Step 3: Cross multiply
    58,689,210x = 128,715,828 × 128,715,828
  4. Step 4: Simplify right side
    58,689,210x = 16,567,764,377,725,584
  5. Step 5: Solve for x
    x = 16,567,764,377,725,584/58,689,210
  6. Step 6: Final answer
    x = 282,296,598.94

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.