Home / 30,219,458.45-45,312,566.48-20,645,647.25

Finding the Fourth Proportional to 30,219,458.45, 45,312,566.48 and 20,645,647.25

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Solution

The fourth proportional to 30,219,458.45, 45,312,566.48 and 20,645,647.25 is: 30,957,115.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,219,458.45 : 45,312,566.48 = 20,645,647.25 : x
  2. Step 2: Convert to fraction form
    30,219,458.45/45,312,566.48 = 20,645,647.25/x
  3. Step 3: Cross multiply
    30,219,458.45x = 45,312,566.48 × 20,645,647.25
  4. Step 4: Simplify right side
    30,219,458.45x = 935,507,263,435,026
  5. Step 5: Solve for x
    x = 935,507,263,435,026/30,219,458.45
  6. Step 6: Final answer
    x = 30,957,115.43

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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.