Home / 20,870,818,372.80-31,306,227,559.20-10,918,416,477.60

Finding the Fourth Proportional to 20,870,818,372.80, 31,306,227,559.20 and 10,918,416,477.60

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Solution

The fourth proportional to 20,870,818,372.80, 31,306,227,559.20 and 10,918,416,477.60 is: 16,377,624,716.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,870,818,372.80 : 31,306,227,559.20 = 10,918,416,477.60 : x
  2. Step 2: Convert to fraction form
    20,870,818,372.80/31,306,227,559.20 = 10,918,416,477.60/x
  3. Step 3: Cross multiply
    20,870,818,372.80x = 31,306,227,559.20 × 10,918,416,477.60
  4. Step 4: Simplify right side
    20,870,818,372.80x = 341,814,430,833,864,540,160
  5. Step 5: Solve for x
    x = 341,814,430,833,864,540,160/20,870,818,372.80
  6. Step 6: Final answer
    x = 16,377,624,716.40

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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.