Home / 450,015,752.80-678,396,587.02-420,017,568.04

Finding the Fourth Proportional to 450,015,752.80, 678,396,587.02 and 420,017,568.04

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Solution

The fourth proportional to 450,015,752.80, 678,396,587.02 and 420,017,568.04 is: 633,174,467.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,015,752.80 : 678,396,587.02 = 420,017,568.04 : x
  2. Step 2: Convert to fraction form
    450,015,752.80/678,396,587.02 = 420,017,568.04/x
  3. Step 3: Cross multiply
    450,015,752.80x = 678,396,587.02 × 420,017,568.04
  4. Step 4: Simplify right side
    450,015,752.80x = 284,938,484,646,776,640
  5. Step 5: Solve for x
    x = 284,938,484,646,776,640/450,015,752.80
  6. Step 6: Final answer
    x = 633,174,467.50

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.