Home / 12,905,159.85-17,809,115.49-7,103,911.50

Finding the Fourth Proportional to 12,905,159.85, 17,809,115.49 and 7,103,911.50

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Solution

The fourth proportional to 12,905,159.85, 17,809,115.49 and 7,103,911.50 is: 9,803,395.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,905,159.85 : 17,809,115.49 = 7,103,911.50 : x
  2. Step 2: Convert to fraction form
    12,905,159.85/17,809,115.49 = 7,103,911.50/x
  3. Step 3: Cross multiply
    12,905,159.85x = 17,809,115.49 × 7,103,911.50
  4. Step 4: Simplify right side
    12,905,159.85x = 126,514,380,334,239.12
  5. Step 5: Solve for x
    x = 126,514,380,334,239.12/12,905,159.85
  6. Step 6: Final answer
    x = 9,803,395.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.