Home / 21,621,361.30-29,869,887.29-14,196,638.45

Finding the Fourth Proportional to 21,621,361.30, 29,869,887.29 and 14,196,638.45

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Solution

The fourth proportional to 21,621,361.30, 29,869,887.29 and 14,196,638.45 is: 19,612,640.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,621,361.30 : 29,869,887.29 = 14,196,638.45 : x
  2. Step 2: Convert to fraction form
    21,621,361.30/29,869,887.29 = 14,196,638.45/x
  3. Step 3: Cross multiply
    21,621,361.30x = 29,869,887.29 × 14,196,638.45
  4. Step 4: Simplify right side
    21,621,361.30x = 424,051,990,402,071.88
  5. Step 5: Solve for x
    x = 424,051,990,402,071.88/21,621,361.30
  6. Step 6: Final answer
    x = 19,612,640.69

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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.