Home / 320,039,957.20-480,059,935.80-314,938,123.60

Finding the Fourth Proportional to 320,039,957.20, 480,059,935.80 and 314,938,123.60

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Solution

The fourth proportional to 320,039,957.20, 480,059,935.80 and 314,938,123.60 is: 472,407,185.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,039,957.20 : 480,059,935.80 = 314,938,123.60 : x
  2. Step 2: Convert to fraction form
    320,039,957.20/480,059,935.80 = 314,938,123.60/x
  3. Step 3: Cross multiply
    320,039,957.20x = 480,059,935.80 × 314,938,123.60
  4. Step 4: Simplify right side
    320,039,957.20x = 151,189,175,396,388,480
  5. Step 5: Solve for x
    x = 151,189,175,396,388,480/320,039,957.20
  6. Step 6: Final answer
    x = 472,407,185.40

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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.