Home / 640,186,498.12-883,458,295.86-346,831,066.12

Finding the Fourth Proportional to 640,186,498.12, 883,458,295.86 and 346,831,066.12

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Solution

The fourth proportional to 640,186,498.12, 883,458,295.86 and 346,831,066.12 is: 478,627,374.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,186,498.12 : 883,458,295.86 = 346,831,066.12 : x
  2. Step 2: Convert to fraction form
    640,186,498.12/883,458,295.86 = 346,831,066.12/x
  3. Step 3: Cross multiply
    640,186,498.12x = 883,458,295.86 × 346,831,066.12
  4. Step 4: Simplify right side
    640,186,498.12x = 306,410,782,625,682,176
  5. Step 5: Solve for x
    x = 306,410,782,625,682,176/640,186,498.12
  6. Step 6: Final answer
    x = 478,627,374.25

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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.