Home / 13,268,802.80-18,316,597.10-8,920,410.75

Finding the Fourth Proportional to 13,268,802.80, 18,316,597.10 and 8,920,410.75

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Solution

The fourth proportional to 13,268,802.80, 18,316,597.10 and 8,920,410.75 is: 12,313,964.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268,802.80 : 18,316,597.10 = 8,920,410.75 : x
  2. Step 2: Convert to fraction form
    13,268,802.80/18,316,597.10 = 8,920,410.75/x
  3. Step 3: Cross multiply
    13,268,802.80x = 18,316,597.10 × 8,920,410.75
  4. Step 4: Simplify right side
    13,268,802.80x = 163,391,569,629,656.75
  5. Step 5: Solve for x
    x = 163,391,569,629,656.75/13,268,802.80
  6. Step 6: Final answer
    x = 12,313,964.72

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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.