Home / 28,603,769.10-42,905,653.65-13,251,029.10

Finding the Fourth Proportional to 28,603,769.10, 42,905,653.65 and 13,251,029.10

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Solution

The fourth proportional to 28,603,769.10, 42,905,653.65 and 13,251,029.10 is: 19,876,543.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,603,769.10 : 42,905,653.65 = 13,251,029.10 : x
  2. Step 2: Convert to fraction form
    28,603,769.10/42,905,653.65 = 13,251,029.10/x
  3. Step 3: Cross multiply
    28,603,769.10x = 42,905,653.65 × 13,251,029.10
  4. Step 4: Simplify right side
    28,603,769.10x = 568,544,065,070,671.12
  5. Step 5: Solve for x
    x = 568,544,065,070,671.12/28,603,769.10
  6. Step 6: Final answer
    x = 19,876,543.65

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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.