Home / 640,709,444.61-884,213,364.24-358,435,046.43

Finding the Fourth Proportional to 640,709,444.61, 884,213,364.24 and 358,435,046.43

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Solution

The fourth proportional to 640,709,444.61, 884,213,364.24 and 358,435,046.43 is: 494,659,569.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,709,444.61 : 884,213,364.24 = 358,435,046.43 : x
  2. Step 2: Convert to fraction form
    640,709,444.61/884,213,364.24 = 358,435,046.43/x
  3. Step 3: Cross multiply
    640,709,444.61x = 884,213,364.24 × 358,435,046.43
  4. Step 4: Simplify right side
    640,709,444.61x = 316,933,058,265,390,912
  5. Step 5: Solve for x
    x = 316,933,058,265,390,912/640,709,444.61
  6. Step 6: Final answer
    x = 494,659,569.84

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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.