Home / 3,938,402,195.80-5,435,011,293.03-2,129,914,025.88

Finding the Fourth Proportional to 3,938,402,195.80, 5,435,011,293.03 and 2,129,914,025.88

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Solution

The fourth proportional to 3,938,402,195.80, 5,435,011,293.03 and 2,129,914,025.88 is: 2,939,290,150.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938,402,195.80 : 5,435,011,293.03 = 2,129,914,025.88 : x
  2. Step 2: Convert to fraction form
    3,938,402,195.80/5,435,011,293.03 = 2,129,914,025.88/x
  3. Step 3: Cross multiply
    3,938,402,195.80x = 5,435,011,293.03 × 2,129,914,025.88
  4. Step 4: Simplify right side
    3,938,402,195.80x = 11,576,106,783,840,792,576
  5. Step 5: Solve for x
    x = 11,576,106,783,840,792,576/3,938,402,195.80
  6. Step 6: Final answer
    x = 2,939,290,150.76

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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.