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Finding the Fourth Proportional to 395,604,668.40, 593,407,002.60 and 202,112,905.20

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Solution

The fourth proportional to 395,604,668.40, 593,407,002.60 and 202,112,905.20 is: 303,169,357.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,604,668.40 : 593,407,002.60 = 202,112,905.20 : x
  2. Step 2: Convert to fraction form
    395,604,668.40/593,407,002.60 = 202,112,905.20/x
  3. Step 3: Cross multiply
    395,604,668.40x = 593,407,002.60 × 202,112,905.20
  4. Step 4: Simplify right side
    395,604,668.40x = 119,935,213,261,509,952
  5. Step 5: Solve for x
    x = 119,935,213,261,509,952/395,604,668.40
  6. Step 6: Final answer
    x = 303,169,357.80

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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.