Home / 217,314,797.40-325,860,221.70-80,929,978.20

Finding the Fourth Proportional to 217,314,797.40, 325,860,221.70 and 80,929,978.20

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Solution

The fourth proportional to 217,314,797.40, 325,860,221.70 and 80,929,978.20 is: 121,353,267.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,314,797.40 : 325,860,221.70 = 80,929,978.20 : x
  2. Step 2: Convert to fraction form
    217,314,797.40/325,860,221.70 = 80,929,978.20/x
  3. Step 3: Cross multiply
    217,314,797.40x = 325,860,221.70 × 80,929,978.20
  4. Step 4: Simplify right side
    217,314,797.40x = 26,371,860,638,428,168
  5. Step 5: Solve for x
    x = 26,371,860,638,428,168/217,314,797.40
  6. Step 6: Final answer
    x = 121,353,267.03

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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.