Home / 28,252,542.80-42,294,833.40-18,678,731.60

Finding the Fourth Proportional to 28,252,542.80, 42,294,833.40 and 18,678,731.60

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Solution

The fourth proportional to 28,252,542.80, 42,294,833.40 and 18,678,731.60 is: 27,962,574.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,252,542.80 : 42,294,833.40 = 18,678,731.60 : x
  2. Step 2: Convert to fraction form
    28,252,542.80/42,294,833.40 = 18,678,731.60/x
  3. Step 3: Cross multiply
    28,252,542.80x = 42,294,833.40 × 18,678,731.60
  4. Step 4: Simplify right side
    28,252,542.80x = 790,013,841,145,315.50
  5. Step 5: Solve for x
    x = 790,013,841,145,315.50/28,252,542.80
  6. Step 6: Final answer
    x = 27,962,574.79

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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.