Home / 21,004,585,529.08-28,986,415,361.85-11,359,315,498.12

Finding the Fourth Proportional to 21,004,585,529.08, 28,986,415,361.85 and 11,359,315,498.12

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Solution

The fourth proportional to 21,004,585,529.08, 28,986,415,361.85 and 11,359,315,498.12 is: 15,675,902,616.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,004,585,529.08 : 28,986,415,361.85 = 11,359,315,498.12 : x
  2. Step 2: Convert to fraction form
    21,004,585,529.08/28,986,415,361.85 = 11,359,315,498.12/x
  3. Step 3: Cross multiply
    21,004,585,529.08x = 28,986,415,361.85 × 11,359,315,498.12
  4. Step 4: Simplify right side
    21,004,585,529.08x = 329,265,837,254,806,339,584
  5. Step 5: Solve for x
    x = 329,265,837,254,806,339,584/21,004,585,529.08
  6. Step 6: Final answer
    x = 15,675,902,616.55

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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.