Home / 398,989,353.24-550,302,309.06-343,328,050.26

Finding the Fourth Proportional to 398,989,353.24, 550,302,309.06 and 343,328,050.26

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Solution

The fourth proportional to 398,989,353.24, 550,302,309.06 and 343,328,050.26 is: 473,531,980.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,989,353.24 : 550,302,309.06 = 343,328,050.26 : x
  2. Step 2: Convert to fraction form
    398,989,353.24/550,302,309.06 = 343,328,050.26/x
  3. Step 3: Cross multiply
    398,989,353.24x = 550,302,309.06 × 343,328,050.26
  4. Step 4: Simplify right side
    398,989,353.24x = 188,934,218,823,145,696
  5. Step 5: Solve for x
    x = 188,934,218,823,145,696/398,989,353.24
  6. Step 6: Final answer
    x = 473,531,980.96

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