Home / 18,783,075.20-28,174,612.80-6,811,491.20

Finding the Fourth Proportional to 18,783,075.20, 28,174,612.80 and 6,811,491.20

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Solution

The fourth proportional to 18,783,075.20, 28,174,612.80 and 6,811,491.20 is: 10,217,236.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,783,075.20 : 28,174,612.80 = 6,811,491.20 : x
  2. Step 2: Convert to fraction form
    18,783,075.20/28,174,612.80 = 6,811,491.20/x
  3. Step 3: Cross multiply
    18,783,075.20x = 28,174,612.80 × 6,811,491.20
  4. Step 4: Simplify right side
    18,783,075.20x = 191,911,127,150,607.38
  5. Step 5: Solve for x
    x = 191,911,127,150,607.38/18,783,075.20
  6. Step 6: Final answer
    x = 10,217,236.80

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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.