Home / 28,207,249.40-42,355,110.90-19,271,415.80

Finding the Fourth Proportional to 28,207,249.40, 42,355,110.90 and 19,271,415.80

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Solution

The fourth proportional to 28,207,249.40, 42,355,110.90 and 19,271,415.80 is: 28,937,346.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,207,249.40 : 42,355,110.90 = 19,271,415.80 : x
  2. Step 2: Convert to fraction form
    28,207,249.40/42,355,110.90 = 19,271,415.80/x
  3. Step 3: Cross multiply
    28,207,249.40x = 42,355,110.90 × 19,271,415.80
  4. Step 4: Simplify right side
    28,207,249.40x = 816,242,953,409,012.25
  5. Step 5: Solve for x
    x = 816,242,953,409,012.25/28,207,249.40
  6. Step 6: Final answer
    x = 28,937,346.63

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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.