Home / 28,245,005.80-42,371,445.30-12,070,828.60

Finding the Fourth Proportional to 28,245,005.80, 42,371,445.30 and 12,070,828.60

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Solution

The fourth proportional to 28,245,005.80, 42,371,445.30 and 12,070,828.60 is: 18,107,925.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,245,005.80 : 42,371,445.30 = 12,070,828.60 : x
  2. Step 2: Convert to fraction form
    28,245,005.80/42,371,445.30 = 12,070,828.60/x
  3. Step 3: Cross multiply
    28,245,005.80x = 42,371,445.30 × 12,070,828.60
  4. Step 4: Simplify right side
    28,245,005.80x = 511,458,453,750,575.50
  5. Step 5: Solve for x
    x = 511,458,453,750,575.50/28,245,005.80
  6. Step 6: Final answer
    x = 18,107,925.25

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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.