Home / 428,932,241.46-643,615,661.94-195,737,111.10

Finding the Fourth Proportional to 428,932,241.46, 643,615,661.94 and 195,737,111.10

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Solution

The fourth proportional to 428,932,241.46, 643,615,661.94 and 195,737,111.10 is: 293,704,828.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,932,241.46 : 643,615,661.94 = 195,737,111.10 : x
  2. Step 2: Convert to fraction form
    428,932,241.46/643,615,661.94 = 195,737,111.10/x
  3. Step 3: Cross multiply
    428,932,241.46x = 643,615,661.94 × 195,737,111.10
  4. Step 4: Simplify right side
    428,932,241.46x = 125,979,470,326,849,824
  5. Step 5: Solve for x
    x = 125,979,470,326,849,824/428,932,241.46
  6. Step 6: Final answer
    x = 293,704,828.29

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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.