Home / 190,199,880.40-285,100,716.80-79,598,922.40

Finding the Fourth Proportional to 190,199,880.40, 285,100,716.80 and 79,598,922.40

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Solution

The fourth proportional to 190,199,880.40, 285,100,716.80 and 79,598,922.40 is: 119,315,058.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,199,880.40 : 285,100,716.80 = 79,598,922.40 : x
  2. Step 2: Convert to fraction form
    190,199,880.40/285,100,716.80 = 79,598,922.40/x
  3. Step 3: Cross multiply
    190,199,880.40x = 285,100,716.80 × 79,598,922.40
  4. Step 4: Simplify right side
    190,199,880.40x = 22,693,709,832,747,580
  5. Step 5: Solve for x
    x = 22,693,709,832,747,580/190,199,880.40
  6. Step 6: Final answer
    x = 119,315,058.37

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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.