Home / 20,808,009.60-31,212,014.40-17,217,830.40

Finding the Fourth Proportional to 20,808,009.60, 31,212,014.40 and 17,217,830.40

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Solution

The fourth proportional to 20,808,009.60, 31,212,014.40 and 17,217,830.40 is: 25,826,745.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,808,009.60 : 31,212,014.40 = 17,217,830.40 : x
  2. Step 2: Convert to fraction form
    20,808,009.60/31,212,014.40 = 17,217,830.40/x
  3. Step 3: Cross multiply
    20,808,009.60x = 31,212,014.40 × 17,217,830.40
  4. Step 4: Simplify right side
    20,808,009.60x = 537,403,170,381,557.69
  5. Step 5: Solve for x
    x = 537,403,170,381,557.69/20,808,009.60
  6. Step 6: Final answer
    x = 25,826,745.60

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Similar ratio
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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.