Home / 786,833,808.42-1,085,925,873.32-447,824,713.58

Finding the Fourth Proportional to 786,833,808.42, 1,085,925,873.32 and 447,824,713.58

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Solution

The fourth proportional to 786,833,808.42, 1,085,925,873.32 and 447,824,713.58 is: 618,052,297.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,833,808.42 : 1,085,925,873.32 = 447,824,713.58 : x
  2. Step 2: Convert to fraction form
    786,833,808.42/1,085,925,873.32 = 447,824,713.58/x
  3. Step 3: Cross multiply
    786,833,808.42x = 1,085,925,873.32 × 447,824,713.58
  4. Step 4: Simplify right side
    786,833,808.42x = 486,304,443,180,971,648
  5. Step 5: Solve for x
    x = 486,304,443,180,971,648/786,833,808.42
  6. Step 6: Final answer
    x = 618,052,297.67

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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.