Home / 1,243,391,940.32-1,716,031,340.85-707,673,857.67

Finding the Fourth Proportional to 1,243,391,940.32, 1,716,031,340.85 and 707,673,857.67

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Solution

The fourth proportional to 1,243,391,940.32, 1,716,031,340.85 and 707,673,857.67 is: 976,675,559.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,391,940.32 : 1,716,031,340.85 = 707,673,857.67 : x
  2. Step 2: Convert to fraction form
    1,243,391,940.32/1,716,031,340.85 = 707,673,857.67/x
  3. Step 3: Cross multiply
    1,243,391,940.32x = 1,716,031,340.85 × 707,673,857.67
  4. Step 4: Simplify right side
    1,243,391,940.32x = 1,214,390,518,861,942,016
  5. Step 5: Solve for x
    x = 1,214,390,518,861,942,016/1,243,391,940.32
  6. Step 6: Final answer
    x = 976,675,559.40

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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.