Home / 714,733,665.87-986,356,412.01-397,207,295.43

Finding the Fourth Proportional to 714,733,665.87, 986,356,412.01 and 397,207,295.43

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Solution

The fourth proportional to 714,733,665.87, 986,356,412.01 and 397,207,295.43 is: 548,159,379.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,733,665.87 : 986,356,412.01 = 397,207,295.43 : x
  2. Step 2: Convert to fraction form
    714,733,665.87/986,356,412.01 = 397,207,295.43/x
  3. Step 3: Cross multiply
    714,733,665.87x = 986,356,412.01 × 397,207,295.43
  4. Step 4: Simplify right side
    714,733,665.87x = 391,787,962,744,530,880
  5. Step 5: Solve for x
    x = 391,787,962,744,530,880/714,733,665.87
  6. Step 6: Final answer
    x = 548,159,379.43

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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.