Home / 647,689,582.11-971,537,219.43-205,034,436.41

Finding the Fourth Proportional to 647,689,582.11, 971,537,219.43 and 205,034,436.41

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Solution

The fourth proportional to 647,689,582.11, 971,537,219.43 and 205,034,436.41 is: 307,552,555.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,689,582.11 : 971,537,219.43 = 205,034,436.41 : x
  2. Step 2: Convert to fraction form
    647,689,582.11/971,537,219.43 = 205,034,436.41/x
  3. Step 3: Cross multiply
    647,689,582.11x = 971,537,219.43 × 205,034,436.41
  4. Step 4: Simplify right side
    647,689,582.11x = 199,198,586,231,541,984
  5. Step 5: Solve for x
    x = 199,198,586,231,541,984/647,689,582.11
  6. Step 6: Final answer
    x = 307,552,555.63

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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.