Home / 20,972,106,783.68-28,948,404,426.39-16,693,169,025.20

Finding the Fourth Proportional to 20,972,106,783.68, 28,948,404,426.39 and 16,693,169,025.20

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Solution

The fourth proportional to 20,972,106,783.68, 28,948,404,426.39 and 16,693,169,025.20 is: 23,042,063,111.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,972,106,783.68 : 28,948,404,426.39 = 16,693,169,025.20 : x
  2. Step 2: Convert to fraction form
    20,972,106,783.68/28,948,404,426.39 = 16,693,169,025.20/x
  3. Step 3: Cross multiply
    20,972,106,783.68x = 28,948,404,426.39 × 16,693,169,025.20
  4. Step 4: Simplify right side
    20,972,106,783.68x = 483,240,608,099,431,350,272
  5. Step 5: Solve for x
    x = 483,240,608,099,431,350,272/20,972,106,783.68
  6. Step 6: Final answer
    x = 23,042,063,111.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.