Home / 28,676,276.40-43,008,436.80-10,489,038.60

Finding the Fourth Proportional to 28,676,276.40, 43,008,436.80 and 10,489,038.60

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Solution

The fourth proportional to 28,676,276.40, 43,008,436.80 and 10,489,038.60 is: 15,731,371.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,676,276.40 : 43,008,436.80 = 10,489,038.60 : x
  2. Step 2: Convert to fraction form
    28,676,276.40/43,008,436.80 = 10,489,038.60/x
  3. Step 3: Cross multiply
    28,676,276.40x = 43,008,436.80 × 10,489,038.60
  4. Step 4: Simplify right side
    28,676,276.40x = 451,117,153,720,860.44
  5. Step 5: Solve for x
    x = 451,117,153,720,860.44/28,676,276.40
  6. Step 6: Final answer
    x = 15,731,371.38

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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.