Home / 25,920,147.20-38,880,220.80-19,201,683.20

Finding the Fourth Proportional to 25,920,147.20, 38,880,220.80 and 19,201,683.20

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Solution

The fourth proportional to 25,920,147.20, 38,880,220.80 and 19,201,683.20 is: 28,802,524.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,920,147.20 : 38,880,220.80 = 19,201,683.20 : x
  2. Step 2: Convert to fraction form
    25,920,147.20/38,880,220.80 = 19,201,683.20/x
  3. Step 3: Cross multiply
    25,920,147.20x = 38,880,220.80 × 19,201,683.20
  4. Step 4: Simplify right side
    25,920,147.20x = 746,565,682,547,650.50
  5. Step 5: Solve for x
    x = 746,565,682,547,650.50/25,920,147.20
  6. Step 6: Final answer
    x = 28,802,524.80

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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.