Home / 315,437,913.60-472,449,081.60-258,814,809.60

Finding the Fourth Proportional to 315,437,913.60, 472,449,081.60 and 258,814,809.60

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Solution

The fourth proportional to 315,437,913.60, 472,449,081.60 and 258,814,809.60 is: 387,641,478.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,437,913.60 : 472,449,081.60 = 258,814,809.60 : x
  2. Step 2: Convert to fraction form
    315,437,913.60/472,449,081.60 = 258,814,809.60/x
  3. Step 3: Cross multiply
    315,437,913.60x = 472,449,081.60 × 258,814,809.60
  4. Step 4: Simplify right side
    315,437,913.60x = 122,276,819,099,998,864
  5. Step 5: Solve for x
    x = 122,276,819,099,998,864/315,437,913.60
  6. Step 6: Final answer
    x = 387,641,478.17

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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.