Home / 21,121,904.37-29,201,534.63-15,606,580.35

Finding the Fourth Proportional to 21,121,904.37, 29,201,534.63 and 15,606,580.35

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Solution

The fourth proportional to 21,121,904.37, 29,201,534.63 and 15,606,580.35 is: 21,576,468.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,121,904.37 : 29,201,534.63 = 15,606,580.35 : x
  2. Step 2: Convert to fraction form
    21,121,904.37/29,201,534.63 = 15,606,580.35/x
  3. Step 3: Cross multiply
    21,121,904.37x = 29,201,534.63 × 15,606,580.35
  4. Step 4: Simplify right side
    21,121,904.37x = 455,736,096,468,369.62
  5. Step 5: Solve for x
    x = 455,736,096,468,369.62/21,121,904.37
  6. Step 6: Final answer
    x = 21,576,468.13

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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.