Home / 386,941,749.84-579,838,662.81-284,203,575.72

Finding the Fourth Proportional to 386,941,749.84, 579,838,662.81 and 284,203,575.72

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Solution

The fourth proportional to 386,941,749.84, 579,838,662.81 and 284,203,575.72 is: 425,883,796.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,941,749.84 : 579,838,662.81 = 284,203,575.72 : x
  2. Step 2: Convert to fraction form
    386,941,749.84/579,838,662.81 = 284,203,575.72/x
  3. Step 3: Cross multiply
    386,941,749.84x = 579,838,662.81 × 284,203,575.72
  4. Step 4: Simplify right side
    386,941,749.84x = 164,792,221,311,305,376
  5. Step 5: Solve for x
    x = 164,792,221,311,305,376/386,941,749.84
  6. Step 6: Final answer
    x = 425,883,796.15

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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.