Home / 13,693,282.92-18,896,730.59-7,892,438.31

Finding the Fourth Proportional to 13,693,282.92, 18,896,730.59 and 7,892,438.31

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Solution

The fourth proportional to 13,693,282.92, 18,896,730.59 and 7,892,438.31 is: 10,891,564.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,693,282.92 : 18,896,730.59 = 7,892,438.31 : x
  2. Step 2: Convert to fraction form
    13,693,282.92/18,896,730.59 = 7,892,438.31/x
  3. Step 3: Cross multiply
    13,693,282.92x = 18,896,730.59 × 7,892,438.31
  4. Step 4: Simplify right side
    13,693,282.92x = 149,141,280,461,996
  5. Step 5: Solve for x
    x = 149,141,280,461,996/13,693,282.92
  6. Step 6: Final answer
    x = 10,891,564.96

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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.