Home / 12,997,965.16-17,931,544.86-7,838,459.56

Finding the Fourth Proportional to 12,997,965.16, 17,931,544.86 and 7,838,459.56

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Solution

The fourth proportional to 12,997,965.16, 17,931,544.86 and 7,838,459.56 is: 10,813,668.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,997,965.16 : 17,931,544.86 = 7,838,459.56 : x
  2. Step 2: Convert to fraction form
    12,997,965.16/17,931,544.86 = 7,838,459.56/x
  3. Step 3: Cross multiply
    12,997,965.16x = 17,931,544.86 × 7,838,459.56
  4. Step 4: Simplify right side
    12,997,965.16x = 140,555,689,233,435.84
  5. Step 5: Solve for x
    x = 140,555,689,233,435.84/12,997,965.16
  6. Step 6: Final answer
    x = 10,813,668.72

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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.