Home / 13,021,346.20-17,968,581.86-7,219,913.17

Finding the Fourth Proportional to 13,021,346.20, 17,968,581.86 and 7,219,913.17

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Solution

The fourth proportional to 13,021,346.20, 17,968,581.86 and 7,219,913.17 is: 9,962,994.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,021,346.20 : 17,968,581.86 = 7,219,913.17 : x
  2. Step 2: Convert to fraction form
    13,021,346.20/17,968,581.86 = 7,219,913.17/x
  3. Step 3: Cross multiply
    13,021,346.20x = 17,968,581.86 × 7,219,913.17
  4. Step 4: Simplify right side
    13,021,346.20x = 129,731,600,817,237.09
  5. Step 5: Solve for x
    x = 129,731,600,817,237.09/13,021,346.20
  6. Step 6: Final answer
    x = 9,962,994.52

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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.