Home / 355,512,715.04-490,608,264.48-198,882,438.32

Finding the Fourth Proportional to 355,512,715.04, 490,608,264.48 and 198,882,438.32

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Solution

The fourth proportional to 355,512,715.04, 490,608,264.48 and 198,882,438.32 is: 274,458,166.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,512,715.04 : 490,608,264.48 = 198,882,438.32 : x
  2. Step 2: Convert to fraction form
    355,512,715.04/490,608,264.48 = 198,882,438.32/x
  3. Step 3: Cross multiply
    355,512,715.04x = 490,608,264.48 × 198,882,438.32
  4. Step 4: Simplify right side
    355,512,715.04x = 97,573,367,899,725,840
  5. Step 5: Solve for x
    x = 97,573,367,899,725,840/355,512,715.04
  6. Step 6: Final answer
    x = 274,458,166.39

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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.