Home / 1,028,362,409.88-1,542,342,755.88-328,666,857.20

Finding the Fourth Proportional to 1,028,362,409.88, 1,542,342,755.88 and 328,666,857.20

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Solution

The fourth proportional to 1,028,362,409.88, 1,542,342,755.88 and 328,666,857.20 is: 492,936,090.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,362,409.88 : 1,542,342,755.88 = 328,666,857.20 : x
  2. Step 2: Convert to fraction form
    1,028,362,409.88/1,542,342,755.88 = 328,666,857.20/x
  3. Step 3: Cross multiply
    1,028,362,409.88x = 1,542,342,755.88 × 328,666,857.20
  4. Step 4: Simplify right side
    1,028,362,409.88x = 506,916,946,300,266,432
  5. Step 5: Solve for x
    x = 506,916,946,300,266,432/1,028,362,409.88
  6. Step 6: Final answer
    x = 492,936,090.85

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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.