Home / 30,272,021.40-45,408,032.10-15,889,531.80

Finding the Fourth Proportional to 30,272,021.40, 45,408,032.10 and 15,889,531.80

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Solution

The fourth proportional to 30,272,021.40, 45,408,032.10 and 15,889,531.80 is: 23,834,297.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,272,021.40 : 45,408,032.10 = 15,889,531.80 : x
  2. Step 2: Convert to fraction form
    30,272,021.40/45,408,032.10 = 15,889,531.80/x
  3. Step 3: Cross multiply
    30,272,021.40x = 45,408,032.10 × 15,889,531.80
  4. Step 4: Simplify right side
    30,272,021.40x = 721,512,370,028,370.88
  5. Step 5: Solve for x
    x = 721,512,370,028,370.88/30,272,021.40
  6. Step 6: Final answer
    x = 23,834,297.70

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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.