Home / 4,118,775.20-6,178,162.80-3,404,938.40

Finding the Fourth Proportional to 4,118,775.20, 6,178,162.80 and 3,404,938.40

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Solution

The fourth proportional to 4,118,775.20, 6,178,162.80 and 3,404,938.40 is: 5,107,407.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,118,775.20 : 6,178,162.80 = 3,404,938.40 : x
  2. Step 2: Convert to fraction form
    4,118,775.20/6,178,162.80 = 3,404,938.40/x
  3. Step 3: Cross multiply
    4,118,775.20x = 6,178,162.80 × 3,404,938.40
  4. Step 4: Simplify right side
    4,118,775.20x = 21,036,263,759,171.52
  5. Step 5: Solve for x
    x = 21,036,263,759,171.52/4,118,775.20
  6. Step 6: Final answer
    x = 5,107,407.60

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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.