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Finding the Third Proportional to 58,631,376 and 128,825,420

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Solution

The third proportional to 58,631,376 and 128,825,420 is: 283,056,444.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,631,376 : 128,825,420 = 128,825,420 : x
  2. Step 2: Convert to fraction form
    58,631,376/128,825,420 = 128,825,420/x
  3. Step 3: Cross multiply
    58,631,376x = 128,825,420 × 128,825,420
  4. Step 4: Simplify right side
    58,631,376x = 16,595,988,838,176,400
  5. Step 5: Solve for x
    x = 16,595,988,838,176,400/58,631,376
  6. Step 6: Final answer
    x = 283,056,444.70

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.