Home / 640,186,496.62-883,458,293.79-346,831,064.62

Finding the Fourth Proportional to 640,186,496.62, 883,458,293.79 and 346,831,064.62

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Solution

The fourth proportional to 640,186,496.62, 883,458,293.79 and 346,831,064.62 is: 478,627,372.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,186,496.62 : 883,458,293.79 = 346,831,064.62 : x
  2. Step 2: Convert to fraction form
    640,186,496.62/883,458,293.79 = 346,831,064.62/x
  3. Step 3: Cross multiply
    640,186,496.62x = 883,458,293.79 × 346,831,064.62
  4. Step 4: Simplify right side
    640,186,496.62x = 306,410,780,582,554,432
  5. Step 5: Solve for x
    x = 306,410,780,582,554,432/640,186,496.62
  6. Step 6: Final answer
    x = 478,627,372.18

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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.