Home / 144,073,430.89-198,821,292.48-77,993,880.10

Finding the Fourth Proportional to 144,073,430.89, 198,821,292.48 and 77,993,880.10

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Solution

The fourth proportional to 144,073,430.89, 198,821,292.48 and 77,993,880.10 is: 107,631,531.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,073,430.89 : 198,821,292.48 = 77,993,880.10 : x
  2. Step 2: Convert to fraction form
    144,073,430.89/198,821,292.48 = 77,993,880.10/x
  3. Step 3: Cross multiply
    144,073,430.89x = 198,821,292.48 × 77,993,880.10
  4. Step 4: Simplify right side
    144,073,430.89x = 15,506,844,046,515,096
  5. Step 5: Solve for x
    x = 15,506,844,046,515,096/144,073,430.89
  6. Step 6: Final answer
    x = 107,631,531.72

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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.