Home / 920,886,983.52-1,380,826,021.51-453,520,662.36

Finding the Fourth Proportional to 920,886,983.52, 1,380,826,021.51 and 453,520,662.36

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Solution

The fourth proportional to 920,886,983.52, 1,380,826,021.51 and 453,520,662.36 is: 680,032,558.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,886,983.52 : 1,380,826,021.51 = 453,520,662.36 : x
  2. Step 2: Convert to fraction form
    920,886,983.52/1,380,826,021.51 = 453,520,662.36/x
  3. Step 3: Cross multiply
    920,886,983.52x = 1,380,826,021.51 × 453,520,662.36
  4. Step 4: Simplify right side
    920,886,983.52x = 626,233,131,879,728,384
  5. Step 5: Solve for x
    x = 626,233,131,879,728,384/920,886,983.52
  6. Step 6: Final answer
    x = 680,032,558.92

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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.