Home / 6,438,412.80-9,657,619.20-4,170,931.20

Finding the Fourth Proportional to 6,438,412.80, 9,657,619.20 and 4,170,931.20

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Solution

The fourth proportional to 6,438,412.80, 9,657,619.20 and 4,170,931.20 is: 6,256,396.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438,412.80 : 9,657,619.20 = 4,170,931.20 : x
  2. Step 2: Convert to fraction form
    6,438,412.80/9,657,619.20 = 4,170,931.20/x
  3. Step 3: Cross multiply
    6,438,412.80x = 9,657,619.20 × 4,170,931.20
  4. Step 4: Simplify right side
    6,438,412.80x = 40,281,265,238,999.04
  5. Step 5: Solve for x
    x = 40,281,265,238,999.04/6,438,412.80
  6. Step 6: Final answer
    x = 6,256,396.80

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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.