Home / 368,801,821.80-553,202,732.70-347,638,660.20

Finding the Fourth Proportional to 368,801,821.80, 553,202,732.70 and 347,638,660.20

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Solution

The fourth proportional to 368,801,821.80, 553,202,732.70 and 347,638,660.20 is: 521,457,990.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,801,821.80 : 553,202,732.70 = 347,638,660.20 : x
  2. Step 2: Convert to fraction form
    368,801,821.80/553,202,732.70 = 347,638,660.20/x
  3. Step 3: Cross multiply
    368,801,821.80x = 553,202,732.70 × 347,638,660.20
  4. Step 4: Simplify right side
    368,801,821.80x = 192,314,656,814,806,752
  5. Step 5: Solve for x
    x = 192,314,656,814,806,752/368,801,821.80
  6. Step 6: Final answer
    x = 521,457,990.30

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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.