Home / 395,428,270.40-593,142,405.60-328,243,630.40

Finding the Fourth Proportional to 395,428,270.40, 593,142,405.60 and 328,243,630.40

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Solution

The fourth proportional to 395,428,270.40, 593,142,405.60 and 328,243,630.40 is: 492,365,445.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,428,270.40 : 593,142,405.60 = 328,243,630.40 : x
  2. Step 2: Convert to fraction form
    395,428,270.40/593,142,405.60 = 328,243,630.40/x
  3. Step 3: Cross multiply
    395,428,270.40x = 593,142,405.60 × 328,243,630.40
  4. Step 4: Simplify right side
    395,428,270.40x = 194,695,216,558,333,280
  5. Step 5: Solve for x
    x = 194,695,216,558,333,280/395,428,270.40
  6. Step 6: Final answer
    x = 492,365,445.60

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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.