Home / 30,003,124.80-45,004,687.20-28,743,412.80

Finding the Fourth Proportional to 30,003,124.80, 45,004,687.20 and 28,743,412.80

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Solution

The fourth proportional to 30,003,124.80, 45,004,687.20 and 28,743,412.80 is: 43,115,119.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,003,124.80 : 45,004,687.20 = 28,743,412.80 : x
  2. Step 2: Convert to fraction form
    30,003,124.80/45,004,687.20 = 28,743,412.80/x
  3. Step 3: Cross multiply
    30,003,124.80x = 45,004,687.20 × 28,743,412.80
  4. Step 4: Simplify right side
    30,003,124.80x = 1,293,588,302,124,476.25
  5. Step 5: Solve for x
    x = 1,293,588,302,124,476.25/30,003,124.80
  6. Step 6: Final answer
    x = 43,115,119.20

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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.