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Finding the Third Proportional to 85,566,792 and 128,368,712

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Solution

The third proportional to 85,566,792 and 128,368,712 is: 192,580,858.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,566,792 : 128,368,712 = 128,368,712 : x
  2. Step 2: Convert to fraction form
    85,566,792/128,368,712 = 128,368,712/x
  3. Step 3: Cross multiply
    85,566,792x = 128,368,712 × 128,368,712
  4. Step 4: Simplify right side
    85,566,792x = 16,478,526,220,538,944
  5. Step 5: Solve for x
    x = 16,478,526,220,538,944/85,566,792
  6. Step 6: Final answer
    x = 192,580,858.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.