Home / 12,460,159.80-18,652,914.90-7,408,870.20

Finding the Fourth Proportional to 12,460,159.80, 18,652,914.90 and 7,408,870.20

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Solution

The fourth proportional to 12,460,159.80, 18,652,914.90 and 7,408,870.20 is: 11,091,111.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,460,159.80 : 18,652,914.90 = 7,408,870.20 : x
  2. Step 2: Convert to fraction form
    12,460,159.80/18,652,914.90 = 7,408,870.20/x
  3. Step 3: Cross multiply
    12,460,159.80x = 18,652,914.90 × 7,408,870.20
  4. Step 4: Simplify right side
    12,460,159.80x = 138,197,025,345,745.97
  5. Step 5: Solve for x
    x = 138,197,025,345,745.97/12,460,159.80
  6. Step 6: Final answer
    x = 11,091,111.80

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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.