Home / 658,810,921.49-988,181,577.80-216,095,285.15

Finding the Fourth Proportional to 658,810,921.49, 988,181,577.80 and 216,095,285.15

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Solution

The fourth proportional to 658,810,921.49, 988,181,577.80 and 216,095,285.15 is: 324,131,511.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,810,921.49 : 988,181,577.80 = 216,095,285.15 : x
  2. Step 2: Convert to fraction form
    658,810,921.49/988,181,577.80 = 216,095,285.15/x
  3. Step 3: Cross multiply
    658,810,921.49x = 988,181,577.80 × 216,095,285.15
  4. Step 4: Simplify right side
    658,810,921.49x = 213,541,379,836,057,888
  5. Step 5: Solve for x
    x = 213,541,379,836,057,888/658,810,921.49
  6. Step 6: Final answer
    x = 324,131,511.59

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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.