Home / 8,698,215.12-13,047,239.40-5,287,443.60

Finding the Fourth Proportional to 8,698,215.12, 13,047,239.40 and 5,287,443.60

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Solution

The fourth proportional to 8,698,215.12, 13,047,239.40 and 5,287,443.60 is: 7,931,114.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,698,215.12 : 13,047,239.40 = 5,287,443.60 : x
  2. Step 2: Convert to fraction form
    8,698,215.12/13,047,239.40 = 5,287,443.60/x
  3. Step 3: Cross multiply
    8,698,215.12x = 13,047,239.40 × 5,287,443.60
  4. Step 4: Simplify right side
    8,698,215.12x = 68,986,542,463,197.84
  5. Step 5: Solve for x
    x = 68,986,542,463,197.84/8,698,215.12
  6. Step 6: Final answer
    x = 7,931,114.78

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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.