Home / 10,106,543.80-15,159,815.70-8,512,220.80

Finding the Fourth Proportional to 10,106,543.80, 15,159,815.70 and 8,512,220.80

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Solution

The fourth proportional to 10,106,543.80, 15,159,815.70 and 8,512,220.80 is: 12,768,331.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,106,543.80 : 15,159,815.70 = 8,512,220.80 : x
  2. Step 2: Convert to fraction form
    10,106,543.80/15,159,815.70 = 8,512,220.80/x
  3. Step 3: Cross multiply
    10,106,543.80x = 15,159,815.70 × 8,512,220.80
  4. Step 4: Simplify right side
    10,106,543.80x = 129,043,698,525,706.56
  5. Step 5: Solve for x
    x = 129,043,698,525,706.56/10,106,543.80
  6. Step 6: Final answer
    x = 12,768,331.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.