Home / 7,678,124.60-11,521,161.30-3,132,505.40

Finding the Fourth Proportional to 7,678,124.60, 11,521,161.30 and 3,132,505.40

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Solution

The fourth proportional to 7,678,124.60, 11,521,161.30 and 3,132,505.40 is: 4,700,379.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,678,124.60 : 11,521,161.30 = 3,132,505.40 : x
  2. Step 2: Convert to fraction form
    7,678,124.60/11,521,161.30 = 3,132,505.40/x
  3. Step 3: Cross multiply
    7,678,124.60x = 11,521,161.30 × 3,132,505.40
  4. Step 4: Simplify right side
    7,678,124.60x = 36,090,099,986,521.02
  5. Step 5: Solve for x
    x = 36,090,099,986,521.02/7,678,124.60
  6. Step 6: Final answer
    x = 4,700,379.57

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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.