Home / 20,736,009.60-31,104,014.40-15,626,659.20

Finding the Fourth Proportional to 20,736,009.60, 31,104,014.40 and 15,626,659.20

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Solution

The fourth proportional to 20,736,009.60, 31,104,014.40 and 15,626,659.20 is: 23,439,988.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,009.60 : 31,104,014.40 = 15,626,659.20 : x
  2. Step 2: Convert to fraction form
    20,736,009.60/31,104,014.40 = 15,626,659.20/x
  3. Step 3: Cross multiply
    20,736,009.60x = 31,104,014.40 × 15,626,659.20
  4. Step 4: Simplify right side
    20,736,009.60x = 486,051,832,780,692.44
  5. Step 5: Solve for x
    x = 486,051,832,780,692.44/20,736,009.60
  6. Step 6: Final answer
    x = 23,439,988.80

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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.