Home / 320,827,296.60-481,240,944.90-78,490,200.60

Finding the Fourth Proportional to 320,827,296.60, 481,240,944.90 and 78,490,200.60

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Solution

The fourth proportional to 320,827,296.60, 481,240,944.90 and 78,490,200.60 is: 117,735,300.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,827,296.60 : 481,240,944.90 = 78,490,200.60 : x
  2. Step 2: Convert to fraction form
    320,827,296.60/481,240,944.90 = 78,490,200.60/x
  3. Step 3: Cross multiply
    320,827,296.60x = 481,240,944.90 × 78,490,200.60
  4. Step 4: Simplify right side
    320,827,296.60x = 37,772,698,302,134,544
  5. Step 5: Solve for x
    x = 37,772,698,302,134,544/320,827,296.60
  6. Step 6: Final answer
    x = 117,735,300.90

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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.