Home / 209,765,862.36-289,385,056.92-200,040,492

Finding the Fourth Proportional to 209,765,862.36, 289,385,056.92 and 200,040,492

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Solution

The fourth proportional to 209,765,862.36, 289,385,056.92 and 200,040,492 is: 275,968,303.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,765,862.36 : 289,385,056.92 = 200,040,492 : x
  2. Step 2: Convert to fraction form
    209,765,862.36/289,385,056.92 = 200,040,492/x
  3. Step 3: Cross multiply
    209,765,862.36x = 289,385,056.92 × 200,040,492
  4. Step 4: Simplify right side
    209,765,862.36x = 57,888,729,163,724,808
  5. Step 5: Solve for x
    x = 57,888,729,163,724,808/209,765,862.36
  6. Step 6: Final answer
    x = 275,968,303.48

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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.