Home / 18,782,302.80-28,173,454.20-9,216,364.80

Finding the Fourth Proportional to 18,782,302.80, 28,173,454.20 and 9,216,364.80

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Solution

The fourth proportional to 18,782,302.80, 28,173,454.20 and 9,216,364.80 is: 13,824,547.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,782,302.80 : 28,173,454.20 = 9,216,364.80 : x
  2. Step 2: Convert to fraction form
    18,782,302.80/28,173,454.20 = 9,216,364.80/x
  3. Step 3: Cross multiply
    18,782,302.80x = 28,173,454.20 × 9,216,364.80
  4. Step 4: Simplify right side
    18,782,302.80x = 259,656,831,583,292.19
  5. Step 5: Solve for x
    x = 259,656,831,583,292.19/18,782,302.80
  6. Step 6: Final answer
    x = 13,824,547.20

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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.