Home / 121,916,096.15-168,244,653.16-66,161,504.45

Finding the Fourth Proportional to 121,916,096.15, 168,244,653.16 and 66,161,504.45

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Solution

The fourth proportional to 121,916,096.15, 168,244,653.16 and 66,161,504.45 is: 91,303,115.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,916,096.15 : 168,244,653.16 = 66,161,504.45 : x
  2. Step 2: Convert to fraction form
    121,916,096.15/168,244,653.16 = 66,161,504.45/x
  3. Step 3: Cross multiply
    121,916,096.15x = 168,244,653.16 × 66,161,504.45
  4. Step 4: Simplify right side
    121,916,096.15x = 11,131,319,368,105,732
  5. Step 5: Solve for x
    x = 11,131,319,368,105,732/121,916,096.15
  6. Step 6: Final answer
    x = 91,303,115.17

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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.