Home / 20,138,813.80-30,208,220.70-5,762,739.40

Finding the Fourth Proportional to 20,138,813.80, 30,208,220.70 and 5,762,739.40

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Solution

The fourth proportional to 20,138,813.80, 30,208,220.70 and 5,762,739.40 is: 8,644,109.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,138,813.80 : 30,208,220.70 = 5,762,739.40 : x
  2. Step 2: Convert to fraction form
    20,138,813.80/30,208,220.70 = 5,762,739.40/x
  3. Step 3: Cross multiply
    20,138,813.80x = 30,208,220.70 × 5,762,739.40
  4. Step 4: Simplify right side
    20,138,813.80x = 174,082,103,631,785.59
  5. Step 5: Solve for x
    x = 174,082,103,631,785.59/20,138,813.80
  6. Step 6: Final answer
    x = 8,644,109.10

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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.