Home / 28,076,440.80-42,114,661.20-19,006,514.40

Finding the Fourth Proportional to 28,076,440.80, 42,114,661.20 and 19,006,514.40

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Solution

The fourth proportional to 28,076,440.80, 42,114,661.20 and 19,006,514.40 is: 28,509,771.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,076,440.80 : 42,114,661.20 = 19,006,514.40 : x
  2. Step 2: Convert to fraction form
    28,076,440.80/42,114,661.20 = 19,006,514.40/x
  3. Step 3: Cross multiply
    28,076,440.80x = 42,114,661.20 × 19,006,514.40
  4. Step 4: Simplify right side
    28,076,440.80x = 800,452,914,548,921.25
  5. Step 5: Solve for x
    x = 800,452,914,548,921.25/28,076,440.80
  6. Step 6: Final answer
    x = 28,509,771.60

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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.