Home / 107,812,382.80-161,739,569.40-31,137,912.40

Finding the Fourth Proportional to 107,812,382.80, 161,739,569.40 and 31,137,912.40

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Solution

The fourth proportional to 107,812,382.80, 161,739,569.40 and 31,137,912.40 is: 46,712,932.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,812,382.80 : 161,739,569.40 = 31,137,912.40 : x
  2. Step 2: Convert to fraction form
    107,812,382.80/161,739,569.40 = 31,137,912.40/x
  3. Step 3: Cross multiply
    107,812,382.80x = 161,739,569.40 × 31,137,912.40
  4. Step 4: Simplify right side
    107,812,382.80x = 5,036,232,543,590,921
  5. Step 5: Solve for x
    x = 5,036,232,543,590,921/107,812,382.80
  6. Step 6: Final answer
    x = 46,712,932.34

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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.