Home / 289,849,274.68-399,993,738.54-157,691,219.24

Finding the Fourth Proportional to 289,849,274.68, 399,993,738.54 and 157,691,219.24

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Solution

The fourth proportional to 289,849,274.68, 399,993,738.54 and 157,691,219.24 is: 217,614,828.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,849,274.68 : 399,993,738.54 = 157,691,219.24 : x
  2. Step 2: Convert to fraction form
    289,849,274.68/399,993,738.54 = 157,691,219.24/x
  3. Step 3: Cross multiply
    289,849,274.68x = 399,993,738.54 × 157,691,219.24
  4. Step 4: Simplify right side
    289,849,274.68x = 63,075,500,318,738,384
  5. Step 5: Solve for x
    x = 63,075,500,318,738,384/289,849,274.68
  6. Step 6: Final answer
    x = 217,614,828.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.