Home / 28,432,686,384.02-39,238,340,599.38-15,745,422,049.91

Finding the Fourth Proportional to 28,432,686,384.02, 39,238,340,599.38 and 15,745,422,049.91

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Solution

The fourth proportional to 28,432,686,384.02, 39,238,340,599.38 and 15,745,422,049.91 is: 21,729,365,453.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,432,686,384.02 : 39,238,340,599.38 = 15,745,422,049.91 : x
  2. Step 2: Convert to fraction form
    28,432,686,384.02/39,238,340,599.38 = 15,745,422,049.91/x
  3. Step 3: Cross multiply
    28,432,686,384.02x = 39,238,340,599.38 × 15,745,422,049.91
  4. Step 4: Simplify right side
    28,432,686,384.02x = 617,824,233,275,081,752,576
  5. Step 5: Solve for x
    x = 617,824,233,275,081,752,576/28,432,686,384.02
  6. Step 6: Final answer
    x = 21,729,365,453.92

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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.