Home / 209,662,288.74-289,248,733.41-139,131,159.54

Finding the Fourth Proportional to 209,662,288.74, 289,248,733.41 and 139,131,159.54

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Solution

The fourth proportional to 209,662,288.74, 289,248,733.41 and 139,131,159.54 is: 191,944,445.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,662,288.74 : 289,248,733.41 = 139,131,159.54 : x
  2. Step 2: Convert to fraction form
    209,662,288.74/289,248,733.41 = 139,131,159.54/x
  3. Step 3: Cross multiply
    209,662,288.74x = 289,248,733.41 × 139,131,159.54
  4. Step 4: Simplify right side
    209,662,288.74x = 40,243,511,674,809,640
  5. Step 5: Solve for x
    x = 40,243,511,674,809,640/209,662,288.74
  6. Step 6: Final answer
    x = 191,944,445.12

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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.