Home / 13,148,427.92-18,144,482.40-7,347,257.33

Finding the Fourth Proportional to 13,148,427.92, 18,144,482.40 and 7,347,257.33

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Solution

The fourth proportional to 13,148,427.92, 18,144,482.40 and 7,347,257.33 is: 10,139,020.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,148,427.92 : 18,144,482.40 = 7,347,257.33 : x
  2. Step 2: Convert to fraction form
    13,148,427.92/18,144,482.40 = 7,347,257.33/x
  3. Step 3: Cross multiply
    13,148,427.92x = 18,144,482.40 × 7,347,257.33
  4. Step 4: Simplify right side
    13,148,427.92x = 133,312,181,221,733.58
  5. Step 5: Solve for x
    x = 133,312,181,221,733.58/13,148,427.92
  6. Step 6: Final answer
    x = 10,139,020.58

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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.