Home / 390,388,824.35-585,680,157.04-193,744,527.30

Finding the Fourth Proportional to 390,388,824.35, 585,680,157.04 and 193,744,527.30

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Solution

The fourth proportional to 390,388,824.35, 585,680,157.04 and 193,744,527.30 is: 290,664,891.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,388,824.35 : 585,680,157.04 = 193,744,527.30 : x
  2. Step 2: Convert to fraction form
    390,388,824.35/585,680,157.04 = 193,744,527.30/x
  3. Step 3: Cross multiply
    390,388,824.35x = 585,680,157.04 × 193,744,527.30
  4. Step 4: Simplify right side
    390,388,824.35x = 113,472,325,175,418,448
  5. Step 5: Solve for x
    x = 113,472,325,175,418,448/390,388,824.35
  6. Step 6: Final answer
    x = 290,664,891.25

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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.