Home / 13,021,345.20-17,968,580.48-7,219,912.17

Finding the Fourth Proportional to 13,021,345.20, 17,968,580.48 and 7,219,912.17

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Solution

The fourth proportional to 13,021,345.20, 17,968,580.48 and 7,219,912.17 is: 9,962,993.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,021,345.20 : 17,968,580.48 = 7,219,912.17 : x
  2. Step 2: Convert to fraction form
    13,021,345.20/17,968,580.48 = 7,219,912.17/x
  3. Step 3: Cross multiply
    13,021,345.20x = 17,968,580.48 × 7,219,912.17
  4. Step 4: Simplify right side
    13,021,345.20x = 129,731,572,903,226.23
  5. Step 5: Solve for x
    x = 129,731,572,903,226.23/13,021,345.20
  6. Step 6: Final answer
    x = 9,962,993.14

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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.