Home / 644,697,105.48-889,673,495.14-358,586,702.28

Finding the Fourth Proportional to 644,697,105.48, 889,673,495.14 and 358,586,702.28

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Solution

The fourth proportional to 644,697,105.48, 889,673,495.14 and 358,586,702.28 is: 494,844,915.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,697,105.48 : 889,673,495.14 = 358,586,702.28 : x
  2. Step 2: Convert to fraction form
    644,697,105.48/889,673,495.14 = 358,586,702.28/x
  3. Step 3: Cross multiply
    644,697,105.48x = 889,673,495.14 × 358,586,702.28
  4. Step 4: Simplify right side
    644,697,105.48x = 319,025,084,728,174,208
  5. Step 5: Solve for x
    x = 319,025,084,728,174,208/644,697,105.48
  6. Step 6: Final answer
    x = 494,844,915.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.