Home / 30,299,048.80-45,448,573.20-20,733,110.80

Finding the Fourth Proportional to 30,299,048.80, 45,448,573.20 and 20,733,110.80

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Solution

The fourth proportional to 30,299,048.80, 45,448,573.20 and 20,733,110.80 is: 31,099,666.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,299,048.80 : 45,448,573.20 = 20,733,110.80 : x
  2. Step 2: Convert to fraction form
    30,299,048.80/45,448,573.20 = 20,733,110.80/x
  3. Step 3: Cross multiply
    30,299,048.80x = 45,448,573.20 × 20,733,110.80
  4. Step 4: Simplify right side
    30,299,048.80x = 942,290,303,857,510.62
  5. Step 5: Solve for x
    x = 942,290,303,857,510.62/30,299,048.80
  6. Step 6: Final answer
    x = 31,099,666.20

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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.