Home / 8,421,136.84-11,621,238.35-4,649,320.46

Finding the Fourth Proportional to 8,421,136.84, 11,621,238.35 and 4,649,320.46

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Solution

The fourth proportional to 8,421,136.84, 11,621,238.35 and 4,649,320.46 is: 6,416,100.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,421,136.84 : 11,621,238.35 = 4,649,320.46 : x
  2. Step 2: Convert to fraction form
    8,421,136.84/11,621,238.35 = 4,649,320.46/x
  3. Step 3: Cross multiply
    8,421,136.84x = 11,621,238.35 × 4,649,320.46
  4. Step 4: Simplify right side
    8,421,136.84x = 54,030,861,210,853.45
  5. Step 5: Solve for x
    x = 54,030,861,210,853.45/8,421,136.84
  6. Step 6: Final answer
    x = 6,416,100.61

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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.