Home / 279,938,417.40-419,907,626.10-126,883,409.40

Finding the Fourth Proportional to 279,938,417.40, 419,907,626.10 and 126,883,409.40

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Solution

The fourth proportional to 279,938,417.40, 419,907,626.10 and 126,883,409.40 is: 190,325,114.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,938,417.40 : 419,907,626.10 = 126,883,409.40 : x
  2. Step 2: Convert to fraction form
    279,938,417.40/419,907,626.10 = 126,883,409.40/x
  3. Step 3: Cross multiply
    279,938,417.40x = 419,907,626.10 × 126,883,409.40
  4. Step 4: Simplify right side
    279,938,417.40x = 53,279,311,232,628,432
  5. Step 5: Solve for x
    x = 53,279,311,232,628,432/279,938,417.40
  6. Step 6: Final answer
    x = 190,325,114.10

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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.