Home / 133,144,448.20-199,590,701.10-78,598,918.60

Finding the Fourth Proportional to 133,144,448.20, 199,590,701.10 and 78,598,918.60

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Solution

The fourth proportional to 133,144,448.20, 199,590,701.10 and 78,598,918.60 is: 117,824,013.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,144,448.20 : 199,590,701.10 = 78,598,918.60 : x
  2. Step 2: Convert to fraction form
    133,144,448.20/199,590,701.10 = 78,598,918.60/x
  3. Step 3: Cross multiply
    133,144,448.20x = 199,590,701.10 × 78,598,918.60
  4. Step 4: Simplify right side
    133,144,448.20x = 15,687,613,269,075,828
  5. Step 5: Solve for x
    x = 15,687,613,269,075,828/133,144,448.20
  6. Step 6: Final answer
    x = 117,824,013.55

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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.