Home / 19,008,007.60-28,512,011.40-8,391,175.60

Finding the Fourth Proportional to 19,008,007.60, 28,512,011.40 and 8,391,175.60

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Solution

The fourth proportional to 19,008,007.60, 28,512,011.40 and 8,391,175.60 is: 12,586,763.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,008,007.60 : 28,512,011.40 = 8,391,175.60 : x
  2. Step 2: Convert to fraction form
    19,008,007.60/28,512,011.40 = 8,391,175.60/x
  3. Step 3: Cross multiply
    19,008,007.60x = 28,512,011.40 × 8,391,175.60
  4. Step 4: Simplify right side
    19,008,007.60x = 239,249,294,366,601.81
  5. Step 5: Solve for x
    x = 239,249,294,366,601.81/19,008,007.60
  6. Step 6: Final answer
    x = 12,586,763.40

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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.