Home / 15,054,272.10-20,774,784.69-8,178,810.66

Finding the Fourth Proportional to 15,054,272.10, 20,774,784.69 and 8,178,810.66

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Solution

The fourth proportional to 15,054,272.10, 20,774,784.69 and 8,178,810.66 is: 11,286,698.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,054,272.10 : 20,774,784.69 = 8,178,810.66 : x
  2. Step 2: Convert to fraction form
    15,054,272.10/20,774,784.69 = 8,178,810.66/x
  3. Step 3: Cross multiply
    15,054,272.10x = 20,774,784.69 × 8,178,810.66
  4. Step 4: Simplify right side
    15,054,272.10x = 169,913,030,481,776.81
  5. Step 5: Solve for x
    x = 169,913,030,481,776.81/15,054,272.10
  6. Step 6: Final answer
    x = 11,286,698.51

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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.