Home / 30,339,079.65-45,508,619.48-20,135,412.45

Finding the Fourth Proportional to 30,339,079.65, 45,508,619.48 and 20,135,412.45

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Solution

The fourth proportional to 30,339,079.65, 45,508,619.48 and 20,135,412.45 is: 30,203,118.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,339,079.65 : 45,508,619.48 = 20,135,412.45 : x
  2. Step 2: Convert to fraction form
    30,339,079.65/45,508,619.48 = 20,135,412.45/x
  3. Step 3: Cross multiply
    30,339,079.65x = 45,508,619.48 × 20,135,412.45
  4. Step 4: Simplify right side
    30,339,079.65x = 916,334,823,159,227.50
  5. Step 5: Solve for x
    x = 916,334,823,159,227.50/30,339,079.65
  6. Step 6: Final answer
    x = 30,203,118.68

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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.