Home / 20,993,672,849.93-31,512,918,825.28-9,047,820,525.45

Finding the Fourth Proportional to 20,993,672,849.93, 31,512,918,825.28 and 9,047,820,525.45

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Solution

The fourth proportional to 20,993,672,849.93, 31,512,918,825.28 and 9,047,820,525.45 is: 13,581,388,821.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,993,672,849.93 : 31,512,918,825.28 = 9,047,820,525.45 : x
  2. Step 2: Convert to fraction form
    20,993,672,849.93/31,512,918,825.28 = 9,047,820,525.45/x
  3. Step 3: Cross multiply
    20,993,672,849.93x = 31,512,918,825.28 × 9,047,820,525.45
  4. Step 4: Simplify right side
    20,993,672,849.93x = 285,123,233,764,225,875,968
  5. Step 5: Solve for x
    x = 285,123,233,764,225,875,968/20,993,672,849.93
  6. Step 6: Final answer
    x = 13,581,388,821.40

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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.