Home / 393,120,067.60-589,680,101.40-316,592,563.60

Finding the Fourth Proportional to 393,120,067.60, 589,680,101.40 and 316,592,563.60

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Solution

The fourth proportional to 393,120,067.60, 589,680,101.40 and 316,592,563.60 is: 474,888,845.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,120,067.60 : 589,680,101.40 = 316,592,563.60 : x
  2. Step 2: Convert to fraction form
    393,120,067.60/589,680,101.40 = 316,592,563.60/x
  3. Step 3: Cross multiply
    393,120,067.60x = 589,680,101.40 × 316,592,563.60
  4. Step 4: Simplify right side
    393,120,067.60x = 186,688,335,006,133,952
  5. Step 5: Solve for x
    x = 186,688,335,006,133,952/393,120,067.60
  6. Step 6: Final answer
    x = 474,888,845.40

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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.