Home / 763,776,101.40-1,145,664,152.10-279,449,496.60

Finding the Fourth Proportional to 763,776,101.40, 1,145,664,152.10 and 279,449,496.60

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Solution

The fourth proportional to 763,776,101.40, 1,145,664,152.10 and 279,449,496.60 is: 419,174,244.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,776,101.40 : 1,145,664,152.10 = 279,449,496.60 : x
  2. Step 2: Convert to fraction form
    763,776,101.40/1,145,664,152.10 = 279,449,496.60/x
  3. Step 3: Cross multiply
    763,776,101.40x = 1,145,664,152.10 × 279,449,496.60
  4. Step 4: Simplify right side
    763,776,101.40x = 320,155,270,577,010,816
  5. Step 5: Solve for x
    x = 320,155,270,577,010,816/763,776,101.40
  6. Step 6: Final answer
    x = 419,174,244.90

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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.