Home / 285,016,669.93-427,589,470.42-153,856,130.13

Finding the Fourth Proportional to 285,016,669.93, 427,589,470.42 and 153,856,130.13

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Solution

The fourth proportional to 285,016,669.93, 427,589,470.42 and 153,856,130.13 is: 230,818,994.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,016,669.93 : 427,589,470.42 = 153,856,130.13 : x
  2. Step 2: Convert to fraction form
    285,016,669.93/427,589,470.42 = 153,856,130.13/x
  3. Step 3: Cross multiply
    285,016,669.93x = 427,589,470.42 × 153,856,130.13
  4. Step 4: Simplify right side
    285,016,669.93x = 65,787,261,203,638,872
  5. Step 5: Solve for x
    x = 65,787,261,203,638,872/285,016,669.93
  6. Step 6: Final answer
    x = 230,818,994.63

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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.