Home / 12,636,007.20-18,954,010.80-12,447,050.40

Finding the Fourth Proportional to 12,636,007.20, 18,954,010.80 and 12,447,050.40

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Solution

The fourth proportional to 12,636,007.20, 18,954,010.80 and 12,447,050.40 is: 18,670,575.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,636,007.20 : 18,954,010.80 = 12,447,050.40 : x
  2. Step 2: Convert to fraction form
    12,636,007.20/18,954,010.80 = 12,447,050.40/x
  3. Step 3: Cross multiply
    12,636,007.20x = 18,954,010.80 × 12,447,050.40
  4. Step 4: Simplify right side
    12,636,007.20x = 235,921,527,709,744.34
  5. Step 5: Solve for x
    x = 235,921,527,709,744.34/12,636,007.20
  6. Step 6: Final answer
    x = 18,670,575.60

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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.