Home / 419,939,109.40-629,908,664.10-396,130,552.60

Finding the Fourth Proportional to 419,939,109.40, 629,908,664.10 and 396,130,552.60

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Solution

The fourth proportional to 419,939,109.40, 629,908,664.10 and 396,130,552.60 is: 594,195,828.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,939,109.40 : 629,908,664.10 = 396,130,552.60 : x
  2. Step 2: Convert to fraction form
    419,939,109.40/629,908,664.10 = 396,130,552.60/x
  3. Step 3: Cross multiply
    419,939,109.40x = 629,908,664.10 × 396,130,552.60
  4. Step 4: Simplify right side
    419,939,109.40x = 249,526,067,197,460,800
  5. Step 5: Solve for x
    x = 249,526,067,197,460,800/419,939,109.40
  6. Step 6: Final answer
    x = 594,195,828.90

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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.