Home / 919,401,188.80-1,268,800,609.44-501,740,443.84

Finding the Fourth Proportional to 919,401,188.80, 1,268,800,609.44 and 501,740,443.84

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Solution

The fourth proportional to 919,401,188.80, 1,268,800,609.44 and 501,740,443.84 is: 692,416,530.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,401,188.80 : 1,268,800,609.44 = 501,740,443.84 : x
  2. Step 2: Convert to fraction form
    919,401,188.80/1,268,800,609.44 = 501,740,443.84/x
  3. Step 3: Cross multiply
    919,401,188.80x = 1,268,800,609.44 × 501,740,443.84
  4. Step 4: Simplify right side
    919,401,188.80x = 636,608,580,924,888,064
  5. Step 5: Solve for x
    x = 636,608,580,924,888,064/919,401,188.80
  6. Step 6: Final answer
    x = 692,416,530.11

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1.5x scale

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.