Home / 419,904,929.60-629,857,394.40-190,322,417.60

Finding the Fourth Proportional to 419,904,929.60, 629,857,394.40 and 190,322,417.60

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Solution

The fourth proportional to 419,904,929.60, 629,857,394.40 and 190,322,417.60 is: 285,483,626.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,929.60 : 629,857,394.40 = 190,322,417.60 : x
  2. Step 2: Convert to fraction form
    419,904,929.60/629,857,394.40 = 190,322,417.60/x
  3. Step 3: Cross multiply
    419,904,929.60x = 629,857,394.40 × 190,322,417.60
  4. Step 4: Simplify right side
    419,904,929.60x = 119,875,982,045,444,688
  5. Step 5: Solve for x
    x = 119,875,982,045,444,688/419,904,929.60
  6. Step 6: Final answer
    x = 285,483,626.40

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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.