Home / 157,989,946.56-217,938,330.24-91,903,009.92

Finding the Fourth Proportional to 157,989,946.56, 217,938,330.24 and 91,903,009.92

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Solution

The fourth proportional to 157,989,946.56, 217,938,330.24 and 91,903,009.92 is: 126,775,082.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,989,946.56 : 217,938,330.24 = 91,903,009.92 : x
  2. Step 2: Convert to fraction form
    157,989,946.56/217,938,330.24 = 91,903,009.92/x
  3. Step 3: Cross multiply
    157,989,946.56x = 217,938,330.24 × 91,903,009.92
  4. Step 4: Simplify right side
    157,989,946.56x = 20,029,188,525,994,956
  5. Step 5: Solve for x
    x = 20,029,188,525,994,956/157,989,946.56
  6. Step 6: Final answer
    x = 126,775,082.61

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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.