Home / 13,163,531.70-18,165,569.16-7,362,308.88

Finding the Fourth Proportional to 13,163,531.70, 18,165,569.16 and 7,362,308.88

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Solution

The fourth proportional to 13,163,531.70, 18,165,569.16 and 7,362,308.88 is: 10,159,927.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,163,531.70 : 18,165,569.16 = 7,362,308.88 : x
  2. Step 2: Convert to fraction form
    13,163,531.70/18,165,569.16 = 7,362,308.88/x
  3. Step 3: Cross multiply
    13,163,531.70x = 18,165,569.16 × 7,362,308.88
  4. Step 4: Simplify right side
    13,163,531.70x = 133,740,531,136,922.14
  5. Step 5: Solve for x
    x = 133,740,531,136,922.14/13,163,531.70
  6. Step 6: Final answer
    x = 10,159,927.76

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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.