Home / 343,874,197.80-515,811,296.70-221,430,191.40

Finding the Fourth Proportional to 343,874,197.80, 515,811,296.70 and 221,430,191.40

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Solution

The fourth proportional to 343,874,197.80, 515,811,296.70 and 221,430,191.40 is: 332,145,287.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,874,197.80 : 515,811,296.70 = 221,430,191.40 : x
  2. Step 2: Convert to fraction form
    343,874,197.80/515,811,296.70 = 221,430,191.40/x
  3. Step 3: Cross multiply
    343,874,197.80x = 515,811,296.70 × 221,430,191.40
  4. Step 4: Simplify right side
    343,874,197.80x = 114,216,194,154,563,184
  5. Step 5: Solve for x
    x = 114,216,194,154,563,184/343,874,197.80
  6. Step 6: Final answer
    x = 332,145,287.10

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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.