Home / 28,026,007.20-42,070,503.60-21,664,461.60

Finding the Fourth Proportional to 28,026,007.20, 42,070,503.60 and 21,664,461.60

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Solution

The fourth proportional to 28,026,007.20, 42,070,503.60 and 21,664,461.60 is: 32,521,036.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,026,007.20 : 42,070,503.60 = 21,664,461.60 : x
  2. Step 2: Convert to fraction form
    28,026,007.20/42,070,503.60 = 21,664,461.60/x
  3. Step 3: Cross multiply
    28,026,007.20x = 42,070,503.60 × 21,664,461.60
  4. Step 4: Simplify right side
    28,026,007.20x = 911,434,809,734,861.88
  5. Step 5: Solve for x
    x = 911,434,809,734,861.88/28,026,007.20
  6. Step 6: Final answer
    x = 32,521,036.74

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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.