Home / 257,815,893.80-386,156,970.30-223,803,669.80

Finding the Fourth Proportional to 257,815,893.80, 386,156,970.30 and 223,803,669.80

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Solution

The fourth proportional to 257,815,893.80, 386,156,970.30 and 223,803,669.80 is: 335,213,418.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,815,893.80 : 386,156,970.30 = 223,803,669.80 : x
  2. Step 2: Convert to fraction form
    257,815,893.80/386,156,970.30 = 223,803,669.80/x
  3. Step 3: Cross multiply
    257,815,893.80x = 386,156,970.30 × 223,803,669.80
  4. Step 4: Simplify right side
    257,815,893.80x = 86,423,347,071,989,616
  5. Step 5: Solve for x
    x = 86,423,347,071,989,616/257,815,893.80
  6. Step 6: Final answer
    x = 335,213,418.37

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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.