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Finding the Fourth Proportional to 202,481,424.48, 303,832,705.44 and 85,878,643.20

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Solution

The fourth proportional to 202,481,424.48, 303,832,705.44 and 85,878,643.20 is: 128,864,860.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,481,424.48 : 303,832,705.44 = 85,878,643.20 : x
  2. Step 2: Convert to fraction form
    202,481,424.48/303,832,705.44 = 85,878,643.20/x
  3. Step 3: Cross multiply
    202,481,424.48x = 303,832,705.44 × 85,878,643.20
  4. Step 4: Simplify right side
    202,481,424.48x = 26,092,740,502,972,460
  5. Step 5: Solve for x
    x = 26,092,740,502,972,460/202,481,424.48
  6. Step 6: Final answer
    x = 128,864,860.42

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.