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Finding the Fourth Proportional to 266,119,119.60, 399,178,679.40 and 163,550,569.20

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Solution

The fourth proportional to 266,119,119.60, 399,178,679.40 and 163,550,569.20 is: 245,325,853.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,119,119.60 : 399,178,679.40 = 163,550,569.20 : x
  2. Step 2: Convert to fraction form
    266,119,119.60/399,178,679.40 = 163,550,569.20/x
  3. Step 3: Cross multiply
    266,119,119.60x = 399,178,679.40 × 163,550,569.20
  4. Step 4: Simplify right side
    266,119,119.60x = 65,285,900,228,374,304
  5. Step 5: Solve for x
    x = 65,285,900,228,374,304/266,119,119.60
  6. Step 6: Final answer
    x = 245,325,853.80

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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.