Home / 12,678,478.83-17,476,886.97-7,774,607.07

Finding the Fourth Proportional to 12,678,478.83, 17,476,886.97 and 7,774,607.07

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Solution

The fourth proportional to 12,678,478.83, 17,476,886.97 and 7,774,607.07 is: 10,717,052.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,678,478.83 : 17,476,886.97 = 7,774,607.07 : x
  2. Step 2: Convert to fraction form
    12,678,478.83/17,476,886.97 = 7,774,607.07/x
  3. Step 3: Cross multiply
    12,678,478.83x = 17,476,886.97 × 7,774,607.07
  4. Step 4: Simplify right side
    12,678,478.83x = 135,875,928,998,552.88
  5. Step 5: Solve for x
    x = 135,875,928,998,552.88/12,678,478.83
  6. Step 6: Final answer
    x = 10,717,052.95

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1.5x scale

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.