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Finding the Third Proportional to 85,688,498 and 130,540,539

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Solution

The third proportional to 85,688,498 and 130,540,539 is: 198,869,541.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,688,498 : 130,540,539 = 130,540,539 : x
  2. Step 2: Convert to fraction form
    85,688,498/130,540,539 = 130,540,539/x
  3. Step 3: Cross multiply
    85,688,498x = 130,540,539 × 130,540,539
  4. Step 4: Simplify right side
    85,688,498x = 17,040,832,322,410,520
  5. Step 5: Solve for x
    x = 17,040,832,322,410,520/85,688,498
  6. Step 6: Final answer
    x = 198,869,541.66

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.