Home / 429,826,977.04-644,677,479.94-211,418,693.68

Finding the Fourth Proportional to 429,826,977.04, 644,677,479.94 and 211,418,693.68

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Solution

The fourth proportional to 429,826,977.04, 644,677,479.94 and 211,418,693.68 is: 317,097,059.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,826,977.04 : 644,677,479.94 = 211,418,693.68 : x
  2. Step 2: Convert to fraction form
    429,826,977.04/644,677,479.94 = 211,418,693.68/x
  3. Step 3: Cross multiply
    429,826,977.04x = 644,677,479.94 × 211,418,693.68
  4. Step 4: Simplify right side
    429,826,977.04x = 136,296,870,653,829,216
  5. Step 5: Solve for x
    x = 136,296,870,653,829,216/429,826,977.04
  6. Step 6: Final answer
    x = 317,097,059.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.