Home / 28,169,550.80-42,254,326.20-11,121,448.40

Finding the Fourth Proportional to 28,169,550.80, 42,254,326.20 and 11,121,448.40

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Solution

The fourth proportional to 28,169,550.80, 42,254,326.20 and 11,121,448.40 is: 16,682,172.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,169,550.80 : 42,254,326.20 = 11,121,448.40 : x
  2. Step 2: Convert to fraction form
    28,169,550.80/42,254,326.20 = 11,121,448.40/x
  3. Step 3: Cross multiply
    28,169,550.80x = 42,254,326.20 × 11,121,448.40
  4. Step 4: Simplify right side
    28,169,550.80x = 469,929,308,510,068.12
  5. Step 5: Solve for x
    x = 469,929,308,510,068.12/28,169,550.80
  6. Step 6: Final answer
    x = 16,682,172.60

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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.