Home / 642,083,457.12-886,079,705.80-348,728,025.12

Finding the Fourth Proportional to 642,083,457.12, 886,079,705.80 and 348,728,025.12

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Solution

The fourth proportional to 642,083,457.12, 886,079,705.80 and 348,728,025.12 is: 481,247,137.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,083,457.12 : 886,079,705.80 = 348,728,025.12 : x
  2. Step 2: Convert to fraction form
    642,083,457.12/886,079,705.80 = 348,728,025.12/x
  3. Step 3: Cross multiply
    642,083,457.12x = 886,079,705.80 × 348,728,025.12
  4. Step 4: Simplify right side
    642,083,457.12x = 309,000,825,902,544,576
  5. Step 5: Solve for x
    x = 309,000,825,902,544,576/642,083,457.12
  6. Step 6: Final answer
    x = 481,247,137.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.