Home / 786,833,844.14-1,085,925,922.47-447,824,749.21

Finding the Fourth Proportional to 786,833,844.14, 1,085,925,922.47 and 447,824,749.21

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Solution

The fourth proportional to 786,833,844.14, 1,085,925,922.47 and 447,824,749.21 is: 618,052,346.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,833,844.14 : 1,085,925,922.47 = 447,824,749.21 : x
  2. Step 2: Convert to fraction form
    786,833,844.14/1,085,925,922.47 = 447,824,749.21/x
  3. Step 3: Cross multiply
    786,833,844.14x = 1,085,925,922.47 × 447,824,749.21
  4. Step 4: Simplify right side
    786,833,844.14x = 486,304,503,888,050,816
  5. Step 5: Solve for x
    x = 486,304,503,888,050,816/786,833,844.14
  6. Step 6: Final answer
    x = 618,052,346.77

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1.5x scale

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.