Home / 622,315,960.40-933,473,940.60-312,379,569.20

Finding the Fourth Proportional to 622,315,960.40, 933,473,940.60 and 312,379,569.20

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Solution

The fourth proportional to 622,315,960.40, 933,473,940.60 and 312,379,569.20 is: 468,569,353.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,315,960.40 : 933,473,940.60 = 312,379,569.20 : x
  2. Step 2: Convert to fraction form
    622,315,960.40/933,473,940.60 = 312,379,569.20/x
  3. Step 3: Cross multiply
    622,315,960.40x = 933,473,940.60 × 312,379,569.20
  4. Step 4: Simplify right side
    622,315,960.40x = 291,598,187,424,054,400
  5. Step 5: Solve for x
    x = 291,598,187,424,054,400/622,315,960.40
  6. Step 6: Final answer
    x = 468,569,353.80

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Double scale
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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.