Home / 447,957,921.12-618,218,730.72-247,054,087.20

Finding the Fourth Proportional to 447,957,921.12, 618,218,730.72 and 247,054,087.20

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Solution

The fourth proportional to 447,957,921.12, 618,218,730.72 and 247,054,087.20 is: 340,954,935.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,957,921.12 : 618,218,730.72 = 247,054,087.20 : x
  2. Step 2: Convert to fraction form
    447,957,921.12/618,218,730.72 = 247,054,087.20/x
  3. Step 3: Cross multiply
    447,957,921.12x = 618,218,730.72 × 247,054,087.20
  4. Step 4: Simplify right side
    447,957,921.12x = 152,733,464,207,972,192
  5. Step 5: Solve for x
    x = 152,733,464,207,972,192/447,957,921.12
  6. Step 6: Final answer
    x = 340,954,935.74

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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.