Home / 30,638,245.60-45,957,368.40-28,299,905.20

Finding the Fourth Proportional to 30,638,245.60, 45,957,368.40 and 28,299,905.20

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Solution

The fourth proportional to 30,638,245.60, 45,957,368.40 and 28,299,905.20 is: 42,449,857.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,638,245.60 : 45,957,368.40 = 28,299,905.20 : x
  2. Step 2: Convert to fraction form
    30,638,245.60/45,957,368.40 = 28,299,905.20/x
  3. Step 3: Cross multiply
    30,638,245.60x = 45,957,368.40 × 28,299,905.20
  4. Step 4: Simplify right side
    30,638,245.60x = 1,300,589,168,961,475.50
  5. Step 5: Solve for x
    x = 1,300,589,168,961,475.50/30,638,245.60
  6. Step 6: Final answer
    x = 42,449,857.80

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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.