Home / 15,784,100.51-21,785,698.67-9,259,825.91

Finding the Fourth Proportional to 15,784,100.51, 21,785,698.67 and 9,259,825.91

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Solution

The fourth proportional to 15,784,100.51, 21,785,698.67 and 9,259,825.91 is: 12,780,695.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,784,100.51 : 21,785,698.67 = 9,259,825.91 : x
  2. Step 2: Convert to fraction form
    15,784,100.51/21,785,698.67 = 9,259,825.91/x
  3. Step 3: Cross multiply
    15,784,100.51x = 21,785,698.67 × 9,259,825.91
  4. Step 4: Simplify right side
    15,784,100.51x = 201,731,776,856,690.91
  5. Step 5: Solve for x
    x = 201,731,776,856,690.91/15,784,100.51
  6. Step 6: Final answer
    x = 12,780,695.16

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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.