Home / 28,998,377.28-40,017,457.40-21,589,168.17

Finding the Fourth Proportional to 28,998,377.28, 40,017,457.40 and 21,589,168.17

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Solution

The fourth proportional to 28,998,377.28, 40,017,457.40 and 21,589,168.17 is: 29,792,826.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,998,377.28 : 40,017,457.40 = 21,589,168.17 : x
  2. Step 2: Convert to fraction form
    28,998,377.28/40,017,457.40 = 21,589,168.17/x
  3. Step 3: Cross multiply
    28,998,377.28x = 40,017,457.40 × 21,589,168.17
  4. Step 4: Simplify right side
    28,998,377.28x = 863,943,617,436,465.25
  5. Step 5: Solve for x
    x = 863,943,617,436,465.25/28,998,377.28
  6. Step 6: Final answer
    x = 29,792,826.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.