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Finding the Third Proportional to 61,655,587.88 and 128,411,907.75

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Solution

The third proportional to 61,655,587.88 and 128,411,907.75 is: 267,447,260.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,655,587.88 : 128,411,907.75 = 128,411,907.75 : x
  2. Step 2: Convert to fraction form
    61,655,587.88/128,411,907.75 = 128,411,907.75/x
  3. Step 3: Cross multiply
    61,655,587.88x = 128,411,907.75 × 128,411,907.75
  4. Step 4: Simplify right side
    61,655,587.88x = 16,489,618,051,994,510
  5. Step 5: Solve for x
    x = 16,489,618,051,994,510/61,655,587.88
  6. Step 6: Final answer
    x = 267,447,260.18

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.