Home / 786,833,911.00-1,085,926,012.40-447,824,811.68

Finding the Fourth Proportional to 786,833,911.00, 1,085,926,012.40 and 447,824,811.68

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Solution

The fourth proportional to 786,833,911.00, 1,085,926,012.40 and 447,824,811.68 is: 618,052,431.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,833,911.00 : 1,085,926,012.40 = 447,824,811.68 : x
  2. Step 2: Convert to fraction form
    786,833,911.00/1,085,926,012.40 = 447,824,811.68/x
  3. Step 3: Cross multiply
    786,833,911.00x = 1,085,926,012.40 × 447,824,811.68
  4. Step 4: Simplify right side
    786,833,911.00x = 486,304,611,999,204,224
  5. Step 5: Solve for x
    x = 486,304,611,999,204,224/786,833,911.00
  6. Step 6: Final answer
    x = 618,052,431.66

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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.