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Finding the Fourth Proportional to 299,658,662.40, 448,732,166.40 and 239,192,486.40

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Solution

The fourth proportional to 299,658,662.40, 448,732,166.40 and 239,192,486.40 is: 358,185,415.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,658,662.40 : 448,732,166.40 = 239,192,486.40 : x
  2. Step 2: Convert to fraction form
    299,658,662.40/448,732,166.40 = 239,192,486.40/x
  3. Step 3: Cross multiply
    299,658,662.40x = 448,732,166.40 × 239,192,486.40
  4. Step 4: Simplify right side
    299,658,662.40x = 107,333,362,608,874,528
  5. Step 5: Solve for x
    x = 107,333,362,608,874,528/299,658,662.40
  6. Step 6: Final answer
    x = 358,185,415.86

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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.