Home / 642,079,807.77-886,074,669.69-348,724,375.77

Finding the Fourth Proportional to 642,079,807.77, 886,074,669.69 and 348,724,375.77

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Solution

The fourth proportional to 642,079,807.77, 886,074,669.69 and 348,724,375.77 is: 481,242,101.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,079,807.77 : 886,074,669.69 = 348,724,375.77 : x
  2. Step 2: Convert to fraction form
    642,079,807.77/886,074,669.69 = 348,724,375.77/x
  3. Step 3: Cross multiply
    642,079,807.77x = 886,074,669.69 × 348,724,375.77
  4. Step 4: Simplify right side
    642,079,807.77x = 308,995,836,073,254,208
  5. Step 5: Solve for x
    x = 308,995,836,073,254,208/642,079,807.77
  6. Step 6: Final answer
    x = 481,242,101.58

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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.