Home / 489,026,939.40-734,390,714.70-259,444,427.40

Finding the Fourth Proportional to 489,026,939.40, 734,390,714.70 and 259,444,427.40

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Solution

The fourth proportional to 489,026,939.40, 734,390,714.70 and 259,444,427.40 is: 389,617,755.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,026,939.40 : 734,390,714.70 = 259,444,427.40 : x
  2. Step 2: Convert to fraction form
    489,026,939.40/734,390,714.70 = 259,444,427.40/x
  3. Step 3: Cross multiply
    489,026,939.40x = 734,390,714.70 × 259,444,427.40
  4. Step 4: Simplify right side
    489,026,939.40x = 190,533,578,463,218,272
  5. Step 5: Solve for x
    x = 190,533,578,463,218,272/489,026,939.40
  6. Step 6: Final answer
    x = 389,617,755.41

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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.