Home / 407,008,443.20-609,616,869.60-245,168,110.40

Finding the Fourth Proportional to 407,008,443.20, 609,616,869.60 and 245,168,110.40

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Solution

The fourth proportional to 407,008,443.20, 609,616,869.60 and 245,168,110.40 is: 367,212,568.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,008,443.20 : 609,616,869.60 = 245,168,110.40 : x
  2. Step 2: Convert to fraction form
    407,008,443.20/609,616,869.60 = 245,168,110.40/x
  3. Step 3: Cross multiply
    407,008,443.20x = 609,616,869.60 × 245,168,110.40
  4. Step 4: Simplify right side
    407,008,443.20x = 149,458,615,987,795,200
  5. Step 5: Solve for x
    x = 149,458,615,987,795,200/407,008,443.20
  6. Step 6: Final answer
    x = 367,212,568.89

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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.