Home / 12,687,678.18-17,508,952.44-6,886,459.80

Finding the Fourth Proportional to 12,687,678.18, 17,508,952.44 and 6,886,459.80

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Solution

The fourth proportional to 12,687,678.18, 17,508,952.44 and 6,886,459.80 is: 9,503,290.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687,678.18 : 17,508,952.44 = 6,886,459.80 : x
  2. Step 2: Convert to fraction form
    12,687,678.18/17,508,952.44 = 6,886,459.80/x
  3. Step 3: Cross multiply
    12,687,678.18x = 17,508,952.44 × 6,886,459.80
  4. Step 4: Simplify right side
    12,687,678.18x = 120,574,697,118,171.92
  5. Step 5: Solve for x
    x = 120,574,697,118,171.92/12,687,678.18
  6. Step 6: Final answer
    x = 9,503,290.94

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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.