Home / 42,631,810.40-63,874,232.40-19,866,015.20

Finding the Fourth Proportional to 42,631,810.40, 63,874,232.40 and 19,866,015.20

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Solution

The fourth proportional to 42,631,810.40, 63,874,232.40 and 19,866,015.20 is: 29,764,780.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,631,810.40 : 63,874,232.40 = 19,866,015.20 : x
  2. Step 2: Convert to fraction form
    42,631,810.40/63,874,232.40 = 19,866,015.20/x
  3. Step 3: Cross multiply
    42,631,810.40x = 63,874,232.40 × 19,866,015.20
  4. Step 4: Simplify right side
    42,631,810.40x = 1,268,926,471,746,732.50
  5. Step 5: Solve for x
    x = 1,268,926,471,746,732.50/42,631,810.40
  6. Step 6: Final answer
    x = 29,764,780.33

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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.