Home / 820,303,162.86-1,230,509,602.76-288,451,046.88

Finding the Fourth Proportional to 820,303,162.86, 1,230,509,602.76 and 288,451,046.88

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Solution

The fourth proportional to 820,303,162.86, 1,230,509,602.76 and 288,451,046.88 is: 432,695,860.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,303,162.86 : 1,230,509,602.76 = 288,451,046.88 : x
  2. Step 2: Convert to fraction form
    820,303,162.86/1,230,509,602.76 = 288,451,046.88/x
  3. Step 3: Cross multiply
    820,303,162.86x = 1,230,509,602.76 × 288,451,046.88
  4. Step 4: Simplify right side
    820,303,162.86x = 354,941,783,112,014,912
  5. Step 5: Solve for x
    x = 354,941,783,112,014,912/820,303,162.86
  6. Step 6: Final answer
    x = 432,695,860.73

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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.