Home / 21,665,149.96-29,898,268.28-11,742,349.45

Finding the Fourth Proportional to 21,665,149.96, 29,898,268.28 and 11,742,349.45

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Solution

The fourth proportional to 21,665,149.96, 29,898,268.28 and 11,742,349.45 is: 16,204,638.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,665,149.96 : 29,898,268.28 = 11,742,349.45 : x
  2. Step 2: Convert to fraction form
    21,665,149.96/29,898,268.28 = 11,742,349.45/x
  3. Step 3: Cross multiply
    21,665,149.96x = 29,898,268.28 × 11,742,349.45
  4. Step 4: Simplify right side
    21,665,149.96x = 351,075,914,034,898.69
  5. Step 5: Solve for x
    x = 351,075,914,034,898.69/21,665,149.96
  6. Step 6: Final answer
    x = 16,204,638.08

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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.