Home / 387,104,037.20-580,656,055.80-171,693,285.20

Finding the Fourth Proportional to 387,104,037.20, 580,656,055.80 and 171,693,285.20

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Solution

The fourth proportional to 387,104,037.20, 580,656,055.80 and 171,693,285.20 is: 257,539,927.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,104,037.20 : 580,656,055.80 = 171,693,285.20 : x
  2. Step 2: Convert to fraction form
    387,104,037.20/580,656,055.80 = 171,693,285.20/x
  3. Step 3: Cross multiply
    387,104,037.20x = 580,656,055.80 × 171,693,285.20
  4. Step 4: Simplify right side
    387,104,037.20x = 99,694,745,791,576,496
  5. Step 5: Solve for x
    x = 99,694,745,791,576,496/387,104,037.20
  6. Step 6: Final answer
    x = 257,539,927.80

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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.