Home / 480,978,023.60-721,467,035.40-208,880,231.60

Finding the Fourth Proportional to 480,978,023.60, 721,467,035.40 and 208,880,231.60

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Solution

The fourth proportional to 480,978,023.60, 721,467,035.40 and 208,880,231.60 is: 313,320,347.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,978,023.60 : 721,467,035.40 = 208,880,231.60 : x
  2. Step 2: Convert to fraction form
    480,978,023.60/721,467,035.40 = 208,880,231.60/x
  3. Step 3: Cross multiply
    480,978,023.60x = 721,467,035.40 × 208,880,231.60
  4. Step 4: Simplify right side
    480,978,023.60x = 150,700,201,446,117,376
  5. Step 5: Solve for x
    x = 150,700,201,446,117,376/480,978,023.60
  6. Step 6: Final answer
    x = 313,320,347.40

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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.