Home / 320,827,356.60-481,241,034.90-78,490,260.60

Finding the Fourth Proportional to 320,827,356.60, 481,241,034.90 and 78,490,260.60

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Solution

The fourth proportional to 320,827,356.60, 481,241,034.90 and 78,490,260.60 is: 117,735,390.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,827,356.60 : 481,241,034.90 = 78,490,260.60 : x
  2. Step 2: Convert to fraction form
    320,827,356.60/481,241,034.90 = 78,490,260.60/x
  3. Step 3: Cross multiply
    320,827,356.60x = 481,241,034.90 × 78,490,260.60
  4. Step 4: Simplify right side
    320,827,356.60x = 37,772,734,240,714,688
  5. Step 5: Solve for x
    x = 37,772,734,240,714,688/320,827,356.60
  6. Step 6: Final answer
    x = 117,735,390.90

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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.