Home / 261,055,899,195.90-391,583,848,793.85-72,401,430,075.90

Finding the Fourth Proportional to 261,055,899,195.90, 391,583,848,793.85 and 72,401,430,075.90

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Solution

The fourth proportional to 261,055,899,195.90, 391,583,848,793.85 and 72,401,430,075.90 is: 108,602,145,113.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,055,899,195.90 : 391,583,848,793.85 = 72,401,430,075.90 : x
  2. Step 2: Convert to fraction form
    261,055,899,195.90/391,583,848,793.85 = 72,401,430,075.90/x
  3. Step 3: Cross multiply
    261,055,899,195.90x = 391,583,848,793.85 × 72,401,430,075.90
  4. Step 4: Simplify right side
    261,055,899,195.90x = 28,351,230,647,299,727,163,392
  5. Step 5: Solve for x
    x = 28,351,230,647,299,727,163,392/261,055,899,195.90
  6. Step 6: Final answer
    x = 108,602,145,113.85

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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.