Home / 449,075,771.70-673,613,657.55-328,143,419.70

Finding the Fourth Proportional to 449,075,771.70, 673,613,657.55 and 328,143,419.70

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Solution

The fourth proportional to 449,075,771.70, 673,613,657.55 and 328,143,419.70 is: 492,215,129.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,075,771.70 : 673,613,657.55 = 328,143,419.70 : x
  2. Step 2: Convert to fraction form
    449,075,771.70/673,613,657.55 = 328,143,419.70/x
  3. Step 3: Cross multiply
    449,075,771.70x = 673,613,657.55 × 328,143,419.70
  4. Step 4: Simplify right side
    449,075,771.70x = 221,041,889,145,081,696
  5. Step 5: Solve for x
    x = 221,041,889,145,081,696/449,075,771.70
  6. Step 6: Final answer
    x = 492,215,129.55

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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.