Home / 20,704,109.60-31,056,164.40-13,798,698.12

Finding the Fourth Proportional to 20,704,109.60, 31,056,164.40 and 13,798,698.12

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Solution

The fourth proportional to 20,704,109.60, 31,056,164.40 and 13,798,698.12 is: 20,698,047.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,704,109.60 : 31,056,164.40 = 13,798,698.12 : x
  2. Step 2: Convert to fraction form
    20,704,109.60/31,056,164.40 = 13,798,698.12/x
  3. Step 3: Cross multiply
    20,704,109.60x = 31,056,164.40 × 13,798,698.12
  4. Step 4: Simplify right side
    20,704,109.60x = 428,534,637,320,690.88
  5. Step 5: Solve for x
    x = 428,534,637,320,690.88/20,704,109.60
  6. Step 6: Final answer
    x = 20,698,047.18

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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.