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Finding the Fourth Proportional to 266,631,323.84, 399,583,768.80 and 163,036,808

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Solution

The fourth proportional to 266,631,323.84, 399,583,768.80 and 163,036,808 is: 244,333,116.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,631,323.84 : 399,583,768.80 = 163,036,808 : x
  2. Step 2: Convert to fraction form
    266,631,323.84/399,583,768.80 = 163,036,808/x
  3. Step 3: Cross multiply
    266,631,323.84x = 399,583,768.80 × 163,036,808
  4. Step 4: Simplify right side
    266,631,323.84x = 65,146,862,193,761,992
  5. Step 5: Solve for x
    x = 65,146,862,193,761,992/266,631,323.84
  6. Step 6: Final answer
    x = 244,333,116.06

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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.