Home / 402,193,859.54-603,274,368.99-139,938,435.86

Finding the Fourth Proportional to 402,193,859.54, 603,274,368.99 and 139,938,435.86

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Solution

The fourth proportional to 402,193,859.54, 603,274,368.99 and 139,938,435.86 is: 209,901,940.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,193,859.54 : 603,274,368.99 = 139,938,435.86 : x
  2. Step 2: Convert to fraction form
    402,193,859.54/603,274,368.99 = 139,938,435.86/x
  3. Step 3: Cross multiply
    402,193,859.54x = 603,274,368.99 × 139,938,435.86
  4. Step 4: Simplify right side
    402,193,859.54x = 84,421,271,590,889,104
  5. Step 5: Solve for x
    x = 84,421,271,590,889,104/402,193,859.54
  6. Step 6: Final answer
    x = 209,901,940.54

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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.