Home / 12,312,421.62-16,992,829.74-7,085,322.36

Finding the Fourth Proportional to 12,312,421.62, 16,992,829.74 and 7,085,322.36

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Solution

The fourth proportional to 12,312,421.62, 16,992,829.74 and 7,085,322.36 is: 9,778,716.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,312,421.62 : 16,992,829.74 = 7,085,322.36 : x
  2. Step 2: Convert to fraction form
    12,312,421.62/16,992,829.74 = 7,085,322.36/x
  3. Step 3: Cross multiply
    12,312,421.62x = 16,992,829.74 × 7,085,322.36
  4. Step 4: Simplify right side
    12,312,421.62x = 120,399,676,516,494.98
  5. Step 5: Solve for x
    x = 120,399,676,516,494.98/12,312,421.62
  6. Step 6: Final answer
    x = 9,778,716.18

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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.