Home / 3,990,208-5,506,487.04-2,179,376.32

Finding the Fourth Proportional to 3,990,208, 5,506,487.04 and 2,179,376.32

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Solution

The fourth proportional to 3,990,208, 5,506,487.04 and 2,179,376.32 is: 3,007,539.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990,208 : 5,506,487.04 = 2,179,376.32 : x
  2. Step 2: Convert to fraction form
    3,990,208/5,506,487.04 = 2,179,376.32/x
  3. Step 3: Cross multiply
    3,990,208x = 5,506,487.04 × 2,179,376.32
  4. Step 4: Simplify right side
    3,990,208x = 12,000,707,461,362.89
  5. Step 5: Solve for x
    x = 12,000,707,461,362.89/3,990,208
  6. Step 6: Final answer
    x = 3,007,539.32

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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.