Home / 12,455,658.86-18,690,866.86-5,266,798.70

Finding the Fourth Proportional to 12,455,658.86, 18,690,866.86 and 5,266,798.70

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Solution

The fourth proportional to 12,455,658.86, 18,690,866.86 and 5,266,798.70 is: 7,903,318.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455,658.86 : 18,690,866.86 = 5,266,798.70 : x
  2. Step 2: Convert to fraction form
    12,455,658.86/18,690,866.86 = 5,266,798.70/x
  3. Step 3: Cross multiply
    12,455,658.86x = 18,690,866.86 × 5,266,798.70
  4. Step 4: Simplify right side
    12,455,658.86x = 98,441,033,280,121.08
  5. Step 5: Solve for x
    x = 98,441,033,280,121.08/12,455,658.86
  6. Step 6: Final answer
    x = 7,903,318.03

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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.