Home / 628,456,604.19-867,297,021.12-349,998,126.81

Finding the Fourth Proportional to 628,456,604.19, 867,297,021.12 and 349,998,126.81

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Solution

The fourth proportional to 628,456,604.19, 867,297,021.12 and 349,998,126.81 is: 483,012,400.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,456,604.19 : 867,297,021.12 = 349,998,126.81 : x
  2. Step 2: Convert to fraction form
    628,456,604.19/867,297,021.12 = 349,998,126.81/x
  3. Step 3: Cross multiply
    628,456,604.19x = 867,297,021.12 × 349,998,126.81
  4. Step 4: Simplify right side
    628,456,604.19x = 303,552,332,779,892,992
  5. Step 5: Solve for x
    x = 303,552,332,779,892,992/628,456,604.19
  6. Step 6: Final answer
    x = 483,012,400.15

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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.