Home / 19,219,669,907.85-28,818,995,197.73-15,261,182,144.55

Finding the Fourth Proportional to 19,219,669,907.85, 28,818,995,197.73 and 15,261,182,144.55

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Solution

The fourth proportional to 19,219,669,907.85, 28,818,995,197.73 and 15,261,182,144.55 is: 22,883,428,125.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,219,669,907.85 : 28,818,995,197.73 = 15,261,182,144.55 : x
  2. Step 2: Convert to fraction form
    19,219,669,907.85/28,818,995,197.73 = 15,261,182,144.55/x
  3. Step 3: Cross multiply
    19,219,669,907.85x = 28,818,995,197.73 × 15,261,182,144.55
  4. Step 4: Simplify right side
    19,219,669,907.85x = 439,811,934,935,408,246,784
  5. Step 5: Solve for x
    x = 439,811,934,935,408,246,784/19,219,669,907.85
  6. Step 6: Final answer
    x = 22,883,428,125.67

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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.