Home / 209,628,193.32-289,308,433.05-126,023,390.46

Finding the Fourth Proportional to 209,628,193.32, 289,308,433.05 and 126,023,390.46

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Solution

The fourth proportional to 209,628,193.32, 289,308,433.05 and 126,023,390.46 is: 173,925,219.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,628,193.32 : 289,308,433.05 = 126,023,390.46 : x
  2. Step 2: Convert to fraction form
    209,628,193.32/289,308,433.05 = 126,023,390.46/x
  3. Step 3: Cross multiply
    209,628,193.32x = 289,308,433.05 × 126,023,390.46
  4. Step 4: Simplify right side
    209,628,193.32x = 36,459,629,621,630,920
  5. Step 5: Solve for x
    x = 36,459,629,621,630,920/209,628,193.32
  6. Step 6: Final answer
    x = 173,925,219.91

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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.