Home / 28,707,929.04-39,623,591.43-18,920,112.60

Finding the Fourth Proportional to 28,707,929.04, 39,623,591.43 and 18,920,112.60

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Solution

The fourth proportional to 28,707,929.04, 39,623,591.43 and 18,920,112.60 is: 26,114,137.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,707,929.04 : 39,623,591.43 = 18,920,112.60 : x
  2. Step 2: Convert to fraction form
    28,707,929.04/39,623,591.43 = 18,920,112.60/x
  3. Step 3: Cross multiply
    28,707,929.04x = 39,623,591.43 × 18,920,112.60
  4. Step 4: Simplify right side
    28,707,929.04x = 749,682,811,471,995.12
  5. Step 5: Solve for x
    x = 749,682,811,471,995.12/28,707,929.04
  6. Step 6: Final answer
    x = 26,114,137.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.