Home / 345,278,644.65-476,478,954.23-188,642,380.41

Finding the Fourth Proportional to 345,278,644.65, 476,478,954.23 and 188,642,380.41

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Solution

The fourth proportional to 345,278,644.65, 476,478,954.23 and 188,642,380.41 is: 260,323,438.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,278,644.65 : 476,478,954.23 = 188,642,380.41 : x
  2. Step 2: Convert to fraction form
    345,278,644.65/476,478,954.23 = 188,642,380.41/x
  3. Step 3: Cross multiply
    345,278,644.65x = 476,478,954.23 × 188,642,380.41
  4. Step 4: Simplify right side
    345,278,644.65x = 89,884,124,140,271,424
  5. Step 5: Solve for x
    x = 89,884,124,140,271,424/345,278,644.65
  6. Step 6: Final answer
    x = 260,323,438.86

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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.