Home / 12,462,028.20-18,689,931.90-4,784,005.80

Finding the Fourth Proportional to 12,462,028.20, 18,689,931.90 and 4,784,005.80

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Solution

The fourth proportional to 12,462,028.20, 18,689,931.90 and 4,784,005.80 is: 7,174,814.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,462,028.20 : 18,689,931.90 = 4,784,005.80 : x
  2. Step 2: Convert to fraction form
    12,462,028.20/18,689,931.90 = 4,784,005.80/x
  3. Step 3: Cross multiply
    12,462,028.20x = 18,689,931.90 × 4,784,005.80
  4. Step 4: Simplify right side
    12,462,028.20x = 89,412,742,611,205.02
  5. Step 5: Solve for x
    x = 89,412,742,611,205.02/12,462,028.20
  6. Step 6: Final answer
    x = 7,174,814.66

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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.