Home / 499,879,299.16-689,780,916.75-276,855,138.46

Finding the Fourth Proportional to 499,879,299.16, 689,780,916.75 and 276,855,138.46

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Solution

The fourth proportional to 499,879,299.16, 689,780,916.75 and 276,855,138.46 is: 382,031,005.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,879,299.16 : 689,780,916.75 = 276,855,138.46 : x
  2. Step 2: Convert to fraction form
    499,879,299.16/689,780,916.75 = 276,855,138.46/x
  3. Step 3: Cross multiply
    499,879,299.16x = 689,780,916.75 × 276,855,138.46
  4. Step 4: Simplify right side
    499,879,299.16x = 190,969,391,213,886,976
  5. Step 5: Solve for x
    x = 190,969,391,213,886,976/499,879,299.16
  6. Step 6: Final answer
    x = 382,031,005.35

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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.