Home / 13,638,428.65-18,827,169.35-8,994,968.38

Finding the Fourth Proportional to 13,638,428.65, 18,827,169.35 and 8,994,968.38

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Solution

The fourth proportional to 13,638,428.65, 18,827,169.35 and 8,994,968.38 is: 12,417,104.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,638,428.65 : 18,827,169.35 = 8,994,968.38 : x
  2. Step 2: Convert to fraction form
    13,638,428.65/18,827,169.35 = 8,994,968.38/x
  3. Step 3: Cross multiply
    13,638,428.65x = 18,827,169.35 × 8,994,968.38
  4. Step 4: Simplify right side
    13,638,428.65x = 169,349,792,988,155.19
  5. Step 5: Solve for x
    x = 169,349,792,988,155.19/13,638,428.65
  6. Step 6: Final answer
    x = 12,417,104.44

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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.