Home / 78,656,510.25-109,365,590.34

Finding the Third Proportional to 78,656,510.25 and 109,365,590.34

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Solution

The third proportional to 78,656,510.25 and 109,365,590.34 is: 152,064,111.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,656,510.25 : 109,365,590.34 = 109,365,590.34 : x
  2. Step 2: Convert to fraction form
    78,656,510.25/109,365,590.34 = 109,365,590.34/x
  3. Step 3: Cross multiply
    78,656,510.25x = 109,365,590.34 × 109,365,590.34
  4. Step 4: Simplify right side
    78,656,510.25x = 11,960,832,351,236,944
  5. Step 5: Solve for x
    x = 11,960,832,351,236,944/78,656,510.25
  6. Step 6: Final answer
    x = 152,064,111.58

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.