Home / 628,456,605.19-867,297,022.50-349,998,127.81

Finding the Fourth Proportional to 628,456,605.19, 867,297,022.50 and 349,998,127.81

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Solution

The fourth proportional to 628,456,605.19, 867,297,022.50 and 349,998,127.81 is: 483,012,401.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,456,605.19 : 867,297,022.50 = 349,998,127.81 : x
  2. Step 2: Convert to fraction form
    628,456,605.19/867,297,022.50 = 349,998,127.81/x
  3. Step 3: Cross multiply
    628,456,605.19x = 867,297,022.50 × 349,998,127.81
  4. Step 4: Simplify right side
    628,456,605.19x = 303,552,334,130,187,456
  5. Step 5: Solve for x
    x = 303,552,334,130,187,456/628,456,605.19
  6. Step 6: Final answer
    x = 483,012,401.53

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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.