Home / 343,874,009.80-515,811,014.70-221,430,003.40

Finding the Fourth Proportional to 343,874,009.80, 515,811,014.70 and 221,430,003.40

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Solution

The fourth proportional to 343,874,009.80, 515,811,014.70 and 221,430,003.40 is: 332,145,005.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,874,009.80 : 515,811,014.70 = 221,430,003.40 : x
  2. Step 2: Convert to fraction form
    343,874,009.80/515,811,014.70 = 221,430,003.40/x
  3. Step 3: Cross multiply
    343,874,009.80x = 515,811,014.70 × 221,430,003.40
  4. Step 4: Simplify right side
    343,874,009.80x = 114,216,034,738,778,448
  5. Step 5: Solve for x
    x = 114,216,034,738,778,448/343,874,009.80
  6. Step 6: Final answer
    x = 332,145,005.10

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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.