Home / 1,284,140,830.40-1,926,211,245.60-314,792,446.40

Finding the Fourth Proportional to 1,284,140,830.40, 1,926,211,245.60 and 314,792,446.40

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Solution

The fourth proportional to 1,284,140,830.40, 1,926,211,245.60 and 314,792,446.40 is: 472,188,669.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,140,830.40 : 1,926,211,245.60 = 314,792,446.40 : x
  2. Step 2: Convert to fraction form
    1,284,140,830.40/1,926,211,245.60 = 314,792,446.40/x
  3. Step 3: Cross multiply
    1,284,140,830.40x = 1,926,211,245.60 × 314,792,446.40
  4. Step 4: Simplify right side
    1,284,140,830.40x = 606,356,750,285,615,104
  5. Step 5: Solve for x
    x = 606,356,750,285,615,104/1,284,140,830.40
  6. Step 6: Final answer
    x = 472,188,669.60

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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.