Home / 8,140,004.70-12,210,007.05-3,351,130.80

Finding the Fourth Proportional to 8,140,004.70, 12,210,007.05 and 3,351,130.80

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Solution

The fourth proportional to 8,140,004.70, 12,210,007.05 and 3,351,130.80 is: 5,026,696.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140,004.70 : 12,210,007.05 = 3,351,130.80 : x
  2. Step 2: Convert to fraction form
    8,140,004.70/12,210,007.05 = 3,351,130.80/x
  3. Step 3: Cross multiply
    8,140,004.70x = 12,210,007.05 × 3,351,130.80
  4. Step 4: Simplify right side
    8,140,004.70x = 40,917,330,693,472.14
  5. Step 5: Solve for x
    x = 40,917,330,693,472.14/8,140,004.70
  6. Step 6: Final answer
    x = 5,026,696.20

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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.