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Finding the Fourth Proportional to 612,880,801.60, 919,321,202.40 and 383,557,230.40

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Solution

The fourth proportional to 612,880,801.60, 919,321,202.40 and 383,557,230.40 is: 575,335,845.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,880,801.60 : 919,321,202.40 = 383,557,230.40 : x
  2. Step 2: Convert to fraction form
    612,880,801.60/919,321,202.40 = 383,557,230.40/x
  3. Step 3: Cross multiply
    612,880,801.60x = 919,321,202.40 × 383,557,230.40
  4. Step 4: Simplify right side
    612,880,801.60x = 352,612,294,240,541,824
  5. Step 5: Solve for x
    x = 352,612,294,240,541,824/612,880,801.60
  6. Step 6: Final answer
    x = 575,335,845.60

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1.5x scale

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.