Home / 28,169,548.80-42,254,323.20-11,121,446.40

Finding the Fourth Proportional to 28,169,548.80, 42,254,323.20 and 11,121,446.40

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Solution

The fourth proportional to 28,169,548.80, 42,254,323.20 and 11,121,446.40 is: 16,682,169.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,169,548.80 : 42,254,323.20 = 11,121,446.40 : x
  2. Step 2: Convert to fraction form
    28,169,548.80/42,254,323.20 = 11,121,446.40/x
  3. Step 3: Cross multiply
    28,169,548.80x = 42,254,323.20 × 11,121,446.40
  4. Step 4: Simplify right side
    28,169,548.80x = 469,929,190,637,076.50
  5. Step 5: Solve for x
    x = 469,929,190,637,076.50/28,169,548.80
  6. Step 6: Final answer
    x = 16,682,169.60

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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.