Home / 12,892,337.12-19,340,708.88-5,315,160.80

Finding the Fourth Proportional to 12,892,337.12, 19,340,708.88 and 5,315,160.80

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Solution

The fourth proportional to 12,892,337.12, 19,340,708.88 and 5,315,160.80 is: 7,973,649.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,892,337.12 : 19,340,708.88 = 5,315,160.80 : x
  2. Step 2: Convert to fraction form
    12,892,337.12/19,340,708.88 = 5,315,160.80/x
  3. Step 3: Cross multiply
    12,892,337.12x = 19,340,708.88 × 5,315,160.80
  4. Step 4: Simplify right side
    12,892,337.12x = 102,798,977,683,187.89
  5. Step 5: Solve for x
    x = 102,798,977,683,187.89/12,892,337.12
  6. Step 6: Final answer
    x = 7,973,649.52

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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.