Home / 680,869,200.20-1,021,303,800.30-405,370,185.80

Finding the Fourth Proportional to 680,869,200.20, 1,021,303,800.30 and 405,370,185.80

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Solution

The fourth proportional to 680,869,200.20, 1,021,303,800.30 and 405,370,185.80 is: 608,055,278.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,869,200.20 : 1,021,303,800.30 = 405,370,185.80 : x
  2. Step 2: Convert to fraction form
    680,869,200.20/1,021,303,800.30 = 405,370,185.80/x
  3. Step 3: Cross multiply
    680,869,200.20x = 1,021,303,800.30 × 405,370,185.80
  4. Step 4: Simplify right side
    680,869,200.20x = 414,006,111,285,857,088
  5. Step 5: Solve for x
    x = 414,006,111,285,857,088/680,869,200.20
  6. Step 6: Final answer
    x = 608,055,278.70

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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.