Home / 640,186,495.12-883,458,291.72-346,831,063.12

Finding the Fourth Proportional to 640,186,495.12, 883,458,291.72 and 346,831,063.12

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Solution

The fourth proportional to 640,186,495.12, 883,458,291.72 and 346,831,063.12 is: 478,627,370.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,186,495.12 : 883,458,291.72 = 346,831,063.12 : x
  2. Step 2: Convert to fraction form
    640,186,495.12/883,458,291.72 = 346,831,063.12/x
  3. Step 3: Cross multiply
    640,186,495.12x = 883,458,291.72 × 346,831,063.12
  4. Step 4: Simplify right side
    640,186,495.12x = 306,410,778,539,426,688
  5. Step 5: Solve for x
    x = 306,410,778,539,426,688/640,186,495.12
  6. Step 6: Final answer
    x = 478,627,370.11

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.