Home / 314,929,629.20-472,394,443.80-309,827,795.60

Finding the Fourth Proportional to 314,929,629.20, 472,394,443.80 and 309,827,795.60

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Solution

The fourth proportional to 314,929,629.20, 472,394,443.80 and 309,827,795.60 is: 464,741,693.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,929,629.20 : 472,394,443.80 = 309,827,795.60 : x
  2. Step 2: Convert to fraction form
    314,929,629.20/472,394,443.80 = 309,827,795.60/x
  3. Step 3: Cross multiply
    314,929,629.20x = 472,394,443.80 × 309,827,795.60
  4. Step 4: Simplify right side
    314,929,629.20x = 146,360,929,176,242,112
  5. Step 5: Solve for x
    x = 146,360,929,176,242,112/314,929,629.20
  6. Step 6: Final answer
    x = 464,741,693.40

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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.