Home / 30,239,743.80-45,359,615.70-18,146,508.60

Finding the Fourth Proportional to 30,239,743.80, 45,359,615.70 and 18,146,508.60

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Solution

The fourth proportional to 30,239,743.80, 45,359,615.70 and 18,146,508.60 is: 27,219,762.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,239,743.80 : 45,359,615.70 = 18,146,508.60 : x
  2. Step 2: Convert to fraction form
    30,239,743.80/45,359,615.70 = 18,146,508.60/x
  3. Step 3: Cross multiply
    30,239,743.80x = 45,359,615.70 × 18,146,508.60
  4. Step 4: Simplify right side
    30,239,743.80x = 823,118,656,392,745.12
  5. Step 5: Solve for x
    x = 823,118,656,392,745.12/30,239,743.80
  6. Step 6: Final answer
    x = 27,219,762.90

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1.5x scale

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.