Home / 20,689,841.03-28,552,866.35-11,522,483.78

Finding the Fourth Proportional to 20,689,841.03, 28,552,866.35 and 11,522,483.78

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Solution

The fourth proportional to 20,689,841.03, 28,552,866.35 and 11,522,483.78 is: 15,901,520.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,689,841.03 : 28,552,866.35 = 11,522,483.78 : x
  2. Step 2: Convert to fraction form
    20,689,841.03/28,552,866.35 = 11,522,483.78/x
  3. Step 3: Cross multiply
    20,689,841.03x = 28,552,866.35 × 11,522,483.78
  4. Step 4: Simplify right side
    20,689,841.03x = 328,999,939,190,006.06
  5. Step 5: Solve for x
    x = 328,999,939,190,006.06/20,689,841.03
  6. Step 6: Final answer
    x = 15,901,520.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.