Home / 157,356,712,790.33-217,152,917,905.62-85,098,777,637.64

Finding the Fourth Proportional to 157,356,712,790.33, 217,152,917,905.62 and 85,098,777,637.64

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Solution

The fourth proportional to 157,356,712,790.33, 217,152,917,905.62 and 85,098,777,637.64 is: 117,436,666,962.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,356,712,790.33 : 217,152,917,905.62 = 85,098,777,637.64 : x
  2. Step 2: Convert to fraction form
    157,356,712,790.33/217,152,917,905.62 = 85,098,777,637.64/x
  3. Step 3: Cross multiply
    157,356,712,790.33x = 217,152,917,905.62 × 85,098,777,637.64
  4. Step 4: Simplify right side
    157,356,712,790.33x = 18,479,447,874,215,050,477,568
  5. Step 5: Solve for x
    x = 18,479,447,874,215,050,477,568/157,356,712,790.33
  6. Step 6: Final answer
    x = 117,436,666,962.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.