Home / 371,354,977.80-512,447,404.50-206,336,904.84

Finding the Fourth Proportional to 371,354,977.80, 512,447,404.50 and 206,336,904.84

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Solution

The fourth proportional to 371,354,977.80, 512,447,404.50 and 206,336,904.84 is: 284,732,446.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,354,977.80 : 512,447,404.50 = 206,336,904.84 : x
  2. Step 2: Convert to fraction form
    371,354,977.80/512,447,404.50 = 206,336,904.84/x
  3. Step 3: Cross multiply
    371,354,977.80x = 512,447,404.50 × 206,336,904.84
  4. Step 4: Simplify right side
    371,354,977.80x = 105,736,811,337,821,488
  5. Step 5: Solve for x
    x = 105,736,811,337,821,488/371,354,977.80
  6. Step 6: Final answer
    x = 284,732,446.47

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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.