Home / 13,280,303.70-18,327,501.45-8,122,045.50

Finding the Fourth Proportional to 13,280,303.70, 18,327,501.45 and 8,122,045.50

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Solution

The fourth proportional to 13,280,303.70, 18,327,501.45 and 8,122,045.50 is: 11,208,840.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280,303.70 : 18,327,501.45 = 8,122,045.50 : x
  2. Step 2: Convert to fraction form
    13,280,303.70/18,327,501.45 = 8,122,045.50/x
  3. Step 3: Cross multiply
    13,280,303.70x = 18,327,501.45 × 8,122,045.50
  4. Step 4: Simplify right side
    13,280,303.70x = 148,856,800,678,215.97
  5. Step 5: Solve for x
    x = 148,856,800,678,215.97/13,280,303.70
  6. Step 6: Final answer
    x = 11,208,840.10

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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.