Home / 15,395,644.64-21,246,656.46-8,520,128.93

Finding the Fourth Proportional to 15,395,644.64, 21,246,656.46 and 8,520,128.93

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Solution

The fourth proportional to 15,395,644.64, 21,246,656.46 and 8,520,128.93 is: 11,758,146.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,395,644.64 : 21,246,656.46 = 8,520,128.93 : x
  2. Step 2: Convert to fraction form
    15,395,644.64/21,246,656.46 = 8,520,128.93/x
  3. Step 3: Cross multiply
    15,395,644.64x = 21,246,656.46 × 8,520,128.93
  4. Step 4: Simplify right side
    15,395,644.64x = 181,024,252,370,617.38
  5. Step 5: Solve for x
    x = 181,024,252,370,617.38/15,395,644.64
  6. Step 6: Final answer
    x = 11,758,146.97

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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.