Home / 608,982,195.51-840,299,436.74-354,705,400.35

Finding the Fourth Proportional to 608,982,195.51, 840,299,436.74 and 354,705,400.35

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Solution

The fourth proportional to 608,982,195.51, 840,299,436.74 and 354,705,400.35 is: 489,437,540.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,982,195.51 : 840,299,436.74 = 354,705,400.35 : x
  2. Step 2: Convert to fraction form
    608,982,195.51/840,299,436.74 = 354,705,400.35/x
  3. Step 3: Cross multiply
    608,982,195.51x = 840,299,436.74 × 354,705,400.35
  4. Step 4: Simplify right side
    608,982,195.51x = 298,058,748,121,641,600
  5. Step 5: Solve for x
    x = 298,058,748,121,641,600/608,982,195.51
  6. Step 6: Final answer
    x = 489,437,540.73

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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.