Home / 21,315,142.89-29,415,063.06-11,767,722.03

Finding the Fourth Proportional to 21,315,142.89, 29,415,063.06 and 11,767,722.03

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Solution

The fourth proportional to 21,315,142.89, 29,415,063.06 and 11,767,722.03 is: 16,239,547.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,315,142.89 : 29,415,063.06 = 11,767,722.03 : x
  2. Step 2: Convert to fraction form
    21,315,142.89/29,415,063.06 = 11,767,722.03/x
  3. Step 3: Cross multiply
    21,315,142.89x = 29,415,063.06 × 11,767,722.03
  4. Step 4: Simplify right side
    21,315,142.89x = 346,148,285,585,001.19
  5. Step 5: Solve for x
    x = 346,148,285,585,001.19/21,315,142.89
  6. Step 6: Final answer
    x = 16,239,547.98

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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.