Home / 386,832,043.68-533,841,322-210,626,872.80

Finding the Fourth Proportional to 386,832,043.68, 533,841,322 and 210,626,872.80

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Solution

The fourth proportional to 386,832,043.68, 533,841,322 and 210,626,872.80 is: 290,672,218.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,832,043.68 : 533,841,322 = 210,626,872.80 : x
  2. Step 2: Convert to fraction form
    386,832,043.68/533,841,322 = 210,626,872.80/x
  3. Step 3: Cross multiply
    386,832,043.68x = 533,841,322 × 210,626,872.80
  4. Step 4: Simplify right side
    386,832,043.68x = 112,441,328,224,277,840
  5. Step 5: Solve for x
    x = 112,441,328,224,277,840/386,832,043.68
  6. Step 6: Final answer
    x = 290,672,218.24

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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.