Home / 1,314,860,145.93-1,971,825,005.07-381,988,912.68

Finding the Fourth Proportional to 1,314,860,145.93, 1,971,825,005.07 and 381,988,912.68

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Solution

The fourth proportional to 1,314,860,145.93, 1,971,825,005.07 and 381,988,912.68 is: 572,848,216.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,860,145.93 : 1,971,825,005.07 = 381,988,912.68 : x
  2. Step 2: Convert to fraction form
    1,314,860,145.93/1,971,825,005.07 = 381,988,912.68/x
  3. Step 3: Cross multiply
    1,314,860,145.93x = 1,971,825,005.07 × 381,988,912.68
  4. Step 4: Simplify right side
    1,314,860,145.93x = 753,215,289,681,924,736
  5. Step 5: Solve for x
    x = 753,215,289,681,924,736/1,314,860,145.93
  6. Step 6: Final answer
    x = 572,848,216.61

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.