Home / 25,621,878.40-38,376,830.40-19,897,187.20

Finding the Fourth Proportional to 25,621,878.40, 38,376,830.40 and 19,897,187.20

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Solution

The fourth proportional to 25,621,878.40, 38,376,830.40 and 19,897,187.20 is: 29,802,302.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,621,878.40 : 38,376,830.40 = 19,897,187.20 : x
  2. Step 2: Convert to fraction form
    25,621,878.40/38,376,830.40 = 19,897,187.20/x
  3. Step 3: Cross multiply
    25,621,878.40x = 38,376,830.40 × 19,897,187.20
  4. Step 4: Simplify right side
    25,621,878.40x = 763,590,978,611,450.88
  5. Step 5: Solve for x
    x = 763,590,978,611,450.88/25,621,878.40
  6. Step 6: Final answer
    x = 29,802,302.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.