Home / 13,316,856.55-19,917,579.75-7,838,896.18

Finding the Fourth Proportional to 13,316,856.55, 19,917,579.75 and 7,838,896.18

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Solution

The fourth proportional to 13,316,856.55, 19,917,579.75 and 7,838,896.18 is: 11,724,376.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316,856.55 : 19,917,579.75 = 7,838,896.18 : x
  2. Step 2: Convert to fraction form
    13,316,856.55/19,917,579.75 = 7,838,896.18/x
  3. Step 3: Cross multiply
    13,316,856.55x = 19,917,579.75 × 7,838,896.18
  4. Step 4: Simplify right side
    13,316,856.55x = 156,131,839,817,120.34
  5. Step 5: Solve for x
    x = 156,131,839,817,120.34/13,316,856.55
  6. Step 6: Final answer
    x = 11,724,376.49

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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.