Home / 20,860,113.60-31,290,170.40-20,104,286.40

Finding the Fourth Proportional to 20,860,113.60, 31,290,170.40 and 20,104,286.40

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Solution

The fourth proportional to 20,860,113.60, 31,290,170.40 and 20,104,286.40 is: 30,156,429.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,860,113.60 : 31,290,170.40 = 20,104,286.40 : x
  2. Step 2: Convert to fraction form
    20,860,113.60/31,290,170.40 = 20,104,286.40/x
  3. Step 3: Cross multiply
    20,860,113.60x = 31,290,170.40 × 20,104,286.40
  4. Step 4: Simplify right side
    20,860,113.60x = 629,066,547,226,402.50
  5. Step 5: Solve for x
    x = 629,066,547,226,402.50/20,860,113.60
  6. Step 6: Final answer
    x = 30,156,429.60

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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.