Home / 638,608,925,543.04-881,220,033,483.84-381,640,663,808.64

Finding the Fourth Proportional to 638,608,925,543.04, 881,220,033,483.84 and 381,640,663,808.64

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Solution

The fourth proportional to 638,608,925,543.04, 881,220,033,483.84 and 381,640,663,808.64 is: 526,628,089,725.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,608,925,543.04 : 881,220,033,483.84 = 381,640,663,808.64 : x
  2. Step 2: Convert to fraction form
    638,608,925,543.04/881,220,033,483.84 = 381,640,663,808.64/x
  3. Step 3: Cross multiply
    638,608,925,543.04x = 881,220,033,483.84 × 381,640,663,808.64
  4. Step 4: Simplify right side
    638,608,925,543.04x = 336,309,398,540,244,637,188,096
  5. Step 5: Solve for x
    x = 336,309,398,540,244,637,188,096/638,608,925,543.04
  6. Step 6: Final answer
    x = 526,628,089,725.28

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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.