Home / 20,862,792,329.60-31,295,700,148.80-12,563,809,673.60

Finding the Fourth Proportional to 20,862,792,329.60, 31,295,700,148.80 and 12,563,809,673.60

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Solution

The fourth proportional to 20,862,792,329.60, 31,295,700,148.80 and 12,563,809,673.60 is: 18,846,624,845.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,862,792,329.60 : 31,295,700,148.80 = 12,563,809,673.60 : x
  2. Step 2: Convert to fraction form
    20,862,792,329.60/31,295,700,148.80 = 12,563,809,673.60/x
  3. Step 3: Cross multiply
    20,862,792,329.60x = 31,295,700,148.80 × 12,563,809,673.60
  4. Step 4: Simplify right side
    20,862,792,329.60x = 393,193,220,271,578,415,104
  5. Step 5: Solve for x
    x = 393,193,220,271,578,415,104/20,862,792,329.60
  6. Step 6: Final answer
    x = 18,846,624,845.79

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1.5x scale

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.