Home / 193,849,792.80-290,774,689.20-139,430,234.40

Finding the Fourth Proportional to 193,849,792.80, 290,774,689.20 and 139,430,234.40

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Solution

The fourth proportional to 193,849,792.80, 290,774,689.20 and 139,430,234.40 is: 209,145,351.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,849,792.80 : 290,774,689.20 = 139,430,234.40 : x
  2. Step 2: Convert to fraction form
    193,849,792.80/290,774,689.20 = 139,430,234.40/x
  3. Step 3: Cross multiply
    193,849,792.80x = 290,774,689.20 × 139,430,234.40
  4. Step 4: Simplify right side
    193,849,792.80x = 40,542,783,072,743,152
  5. Step 5: Solve for x
    x = 40,542,783,072,743,152/193,849,792.80
  6. Step 6: Final answer
    x = 209,145,351.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.