Home / 642,079,811.05-886,074,674.24-348,724,379.05

Finding the Fourth Proportional to 642,079,811.05, 886,074,674.24 and 348,724,379.05

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Solution

The fourth proportional to 642,079,811.05, 886,074,674.24 and 348,724,379.05 is: 481,242,106.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,079,811.05 : 886,074,674.24 = 348,724,379.05 : x
  2. Step 2: Convert to fraction form
    642,079,811.05/886,074,674.24 = 348,724,379.05/x
  3. Step 3: Cross multiply
    642,079,811.05x = 886,074,674.24 × 348,724,379.05
  4. Step 4: Simplify right side
    642,079,811.05x = 308,995,840,564,931,648
  5. Step 5: Solve for x
    x = 308,995,840,564,931,648/642,079,811.05
  6. Step 6: Final answer
    x = 481,242,106.12

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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.