Home / 28,430,170.76-42,650,570.86-11,392,172.30

Finding the Fourth Proportional to 28,430,170.76, 42,650,570.86 and 11,392,172.30

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Solution

The fourth proportional to 28,430,170.76, 42,650,570.86 and 11,392,172.30 is: 17,090,388.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,430,170.76 : 42,650,570.86 = 11,392,172.30 : x
  2. Step 2: Convert to fraction form
    28,430,170.76/42,650,570.86 = 11,392,172.30/x
  3. Step 3: Cross multiply
    28,430,170.76x = 42,650,570.86 × 11,392,172.30
  4. Step 4: Simplify right side
    28,430,170.76x = 485,882,652,008,625.19
  5. Step 5: Solve for x
    x = 485,882,652,008,625.19/28,430,170.76
  6. Step 6: Final answer
    x = 17,090,388.10

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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.