Home / 423,159,112.80-634,738,669.20-355,134,664.80

Finding the Fourth Proportional to 423,159,112.80, 634,738,669.20 and 355,134,664.80

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Solution

The fourth proportional to 423,159,112.80, 634,738,669.20 and 355,134,664.80 is: 532,701,997.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,159,112.80 : 634,738,669.20 = 355,134,664.80 : x
  2. Step 2: Convert to fraction form
    423,159,112.80/634,738,669.20 = 355,134,664.80/x
  3. Step 3: Cross multiply
    423,159,112.80x = 634,738,669.20 × 355,134,664.80
  4. Step 4: Simplify right side
    423,159,112.80x = 225,417,704,521,940,096
  5. Step 5: Solve for x
    x = 225,417,704,521,940,096/423,159,112.80
  6. Step 6: Final answer
    x = 532,701,997.20

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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.