Home / 387,082,002.80-580,623,004.20-356,177,068.40

Finding the Fourth Proportional to 387,082,002.80, 580,623,004.20 and 356,177,068.40

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Solution

The fourth proportional to 387,082,002.80, 580,623,004.20 and 356,177,068.40 is: 534,265,602.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,082,002.80 : 580,623,004.20 = 356,177,068.40 : x
  2. Step 2: Convert to fraction form
    387,082,002.80/580,623,004.20 = 356,177,068.40/x
  3. Step 3: Cross multiply
    387,082,002.80x = 580,623,004.20 × 356,177,068.40
  4. Step 4: Simplify right side
    387,082,002.80x = 206,804,599,481,556,896
  5. Step 5: Solve for x
    x = 206,804,599,481,556,896/387,082,002.80
  6. Step 6: Final answer
    x = 534,265,602.60

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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.