Home / 20,227,130,983.20-30,340,696,474.80-19,813,882,461.60

Finding the Fourth Proportional to 20,227,130,983.20, 30,340,696,474.80 and 19,813,882,461.60

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Solution

The fourth proportional to 20,227,130,983.20, 30,340,696,474.80 and 19,813,882,461.60 is: 29,720,823,692.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,227,130,983.20 : 30,340,696,474.80 = 19,813,882,461.60 : x
  2. Step 2: Convert to fraction form
    20,227,130,983.20/30,340,696,474.80 = 19,813,882,461.60/x
  3. Step 3: Cross multiply
    20,227,130,983.20x = 30,340,696,474.80 × 19,813,882,461.60
  4. Step 4: Simplify right side
    20,227,130,983.20x = 601,166,993,754,768,539,648
  5. Step 5: Solve for x
    x = 601,166,993,754,768,539,648/20,227,130,983.20
  6. Step 6: Final answer
    x = 29,720,823,692.40

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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.