Home / 387,285,350.40-580,928,025.60-357,724,108.80

Finding the Fourth Proportional to 387,285,350.40, 580,928,025.60 and 357,724,108.80

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Solution

The fourth proportional to 387,285,350.40, 580,928,025.60 and 357,724,108.80 is: 536,586,163.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,285,350.40 : 580,928,025.60 = 357,724,108.80 : x
  2. Step 2: Convert to fraction form
    387,285,350.40/580,928,025.60 = 357,724,108.80/x
  3. Step 3: Cross multiply
    387,285,350.40x = 580,928,025.60 × 357,724,108.80
  4. Step 4: Simplify right side
    387,285,350.40x = 207,811,960,234,703,616
  5. Step 5: Solve for x
    x = 207,811,960,234,703,616/387,285,350.40
  6. Step 6: Final answer
    x = 536,586,163.20

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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.