Home / 2,128,971,721.80-3,195,846,369.90-1,646,436,707.40

Finding the Fourth Proportional to 2,128,971,721.80, 3,195,846,369.90 and 1,646,436,707.40

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Solution

The fourth proportional to 2,128,971,721.80, 3,195,846,369.90 and 1,646,436,707.40 is: 2,471,502,425.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,971,721.80 : 3,195,846,369.90 = 1,646,436,707.40 : x
  2. Step 2: Convert to fraction form
    2,128,971,721.80/3,195,846,369.90 = 1,646,436,707.40/x
  3. Step 3: Cross multiply
    2,128,971,721.80x = 3,195,846,369.90 × 1,646,436,707.40
  4. Step 4: Simplify right side
    2,128,971,721.80x = 5,261,758,774,614,398,976
  5. Step 5: Solve for x
    x = 5,261,758,774,614,398,976/2,128,971,721.80
  6. Step 6: Final answer
    x = 2,471,502,425.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.