Home / 28,156,829.96-42,241,465.74-10,205,467.40

Finding the Fourth Proportional to 28,156,829.96, 42,241,465.74 and 10,205,467.40

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Solution

The fourth proportional to 28,156,829.96, 42,241,465.74 and 10,205,467.40 is: 15,310,455.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,156,829.96 : 42,241,465.74 = 10,205,467.40 : x
  2. Step 2: Convert to fraction form
    28,156,829.96/42,241,465.74 = 10,205,467.40/x
  3. Step 3: Cross multiply
    28,156,829.96x = 42,241,465.74 × 10,205,467.40
  4. Step 4: Simplify right side
    28,156,829.96x = 431,093,901,537,786.94
  5. Step 5: Solve for x
    x = 431,093,901,537,786.94/28,156,829.96
  6. Step 6: Final answer
    x = 15,310,455.83

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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.