Home / 12,882,955.08-17,778,698.84-7,081,981.32

Finding the Fourth Proportional to 12,882,955.08, 17,778,698.84 and 7,081,981.32

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Solution

The fourth proportional to 12,882,955.08, 17,778,698.84 and 7,081,981.32 is: 9,773,255.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,882,955.08 : 17,778,698.84 = 7,081,981.32 : x
  2. Step 2: Convert to fraction form
    12,882,955.08/17,778,698.84 = 7,081,981.32/x
  3. Step 3: Cross multiply
    12,882,955.08x = 17,778,698.84 × 7,081,981.32
  4. Step 4: Simplify right side
    12,882,955.08x = 125,908,413,078,785.67
  5. Step 5: Solve for x
    x = 125,908,413,078,785.67/12,882,955.08
  6. Step 6: Final answer
    x = 9,773,255.62

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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.