Home / 28,066,805.20-42,100,207.80-18,996,878.80

Finding the Fourth Proportional to 28,066,805.20, 42,100,207.80 and 18,996,878.80

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Solution

The fourth proportional to 28,066,805.20, 42,100,207.80 and 18,996,878.80 is: 28,495,318.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,066,805.20 : 42,100,207.80 = 18,996,878.80 : x
  2. Step 2: Convert to fraction form
    28,066,805.20/42,100,207.80 = 18,996,878.80/x
  3. Step 3: Cross multiply
    28,066,805.20x = 42,100,207.80 × 18,996,878.80
  4. Step 4: Simplify right side
    28,066,805.20x = 799,772,545,031,414.62
  5. Step 5: Solve for x
    x = 799,772,545,031,414.62/28,066,805.20
  6. Step 6: Final answer
    x = 28,495,318.20

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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.