Home / 28,188,485,022.85-38,900,846,586.82-15,328,877,091.28

Finding the Fourth Proportional to 28,188,485,022.85, 38,900,846,586.82 and 15,328,877,091.28

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Solution

The fourth proportional to 28,188,485,022.85, 38,900,846,586.82 and 15,328,877,091.28 is: 21,154,251,304.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,188,485,022.85 : 38,900,846,586.82 = 15,328,877,091.28 : x
  2. Step 2: Convert to fraction form
    28,188,485,022.85/38,900,846,586.82 = 15,328,877,091.28/x
  3. Step 3: Cross multiply
    28,188,485,022.85x = 38,900,846,586.82 × 15,328,877,091.28
  4. Step 4: Simplify right side
    28,188,485,022.85x = 596,306,296,075,901,206,528
  5. Step 5: Solve for x
    x = 596,306,296,075,901,206,528/28,188,485,022.85
  6. Step 6: Final answer
    x = 21,154,251,304.83

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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.