Home / 13,671,279.69-18,865,992.67-7,559,499.21

Finding the Fourth Proportional to 13,671,279.69, 18,865,992.67 and 7,559,499.21

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Solution

The fourth proportional to 13,671,279.69, 18,865,992.67 and 7,559,499.21 is: 10,431,902.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,671,279.69 : 18,865,992.67 = 7,559,499.21 : x
  2. Step 2: Convert to fraction form
    13,671,279.69/18,865,992.67 = 7,559,499.21/x
  3. Step 3: Cross multiply
    13,671,279.69x = 18,865,992.67 × 7,559,499.21
  4. Step 4: Simplify right side
    13,671,279.69x = 142,617,456,684,730.81
  5. Step 5: Solve for x
    x = 142,617,456,684,730.81/13,671,279.69
  6. Step 6: Final answer
    x = 10,431,902.49

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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.