Home / 186,659,999.40-279,989,999.10-78,954,623.40

Finding the Fourth Proportional to 186,659,999.40, 279,989,999.10 and 78,954,623.40

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Solution

The fourth proportional to 186,659,999.40, 279,989,999.10 and 78,954,623.40 is: 118,431,935.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,659,999.40 : 279,989,999.10 = 78,954,623.40 : x
  2. Step 2: Convert to fraction form
    186,659,999.40/279,989,999.10 = 78,954,623.40/x
  3. Step 3: Cross multiply
    186,659,999.40x = 279,989,999.10 × 78,954,623.40
  4. Step 4: Simplify right side
    186,659,999.40x = 22,106,504,934,706,844
  5. Step 5: Solve for x
    x = 22,106,504,934,706,844/186,659,999.40
  6. Step 6: Final answer
    x = 118,431,935.10

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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.