Home / 278,883,643.66-417,840,673.04-195,708,993.72

Finding the Fourth Proportional to 278,883,643.66, 417,840,673.04 and 195,708,993.72

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Solution

The fourth proportional to 278,883,643.66, 417,840,673.04 and 195,708,993.72 is: 293,223,283.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,883,643.66 : 417,840,673.04 = 195,708,993.72 : x
  2. Step 2: Convert to fraction form
    278,883,643.66/417,840,673.04 = 195,708,993.72/x
  3. Step 3: Cross multiply
    278,883,643.66x = 417,840,673.04 × 195,708,993.72
  4. Step 4: Simplify right side
    278,883,643.66x = 81,775,177,655,945,936
  5. Step 5: Solve for x
    x = 81,775,177,655,945,936/278,883,643.66
  6. Step 6: Final answer
    x = 293,223,283.31

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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.