Home / 19,326,829.80-28,990,244.70-12,956,730.60

Finding the Fourth Proportional to 19,326,829.80, 28,990,244.70 and 12,956,730.60

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Solution

The fourth proportional to 19,326,829.80, 28,990,244.70 and 12,956,730.60 is: 19,435,095.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,326,829.80 : 28,990,244.70 = 12,956,730.60 : x
  2. Step 2: Convert to fraction form
    19,326,829.80/28,990,244.70 = 12,956,730.60/x
  3. Step 3: Cross multiply
    19,326,829.80x = 28,990,244.70 × 12,956,730.60
  4. Step 4: Simplify right side
    19,326,829.80x = 375,618,790,605,977.81
  5. Step 5: Solve for x
    x = 375,618,790,605,977.81/19,326,829.80
  6. Step 6: Final answer
    x = 19,435,095.90

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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.