Home / 5,187,657.60-7,781,486.40-1,821,864.60

Finding the Fourth Proportional to 5,187,657.60, 7,781,486.40 and 1,821,864.60

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Solution

The fourth proportional to 5,187,657.60, 7,781,486.40 and 1,821,864.60 is: 2,732,796.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187,657.60 : 7,781,486.40 = 1,821,864.60 : x
  2. Step 2: Convert to fraction form
    5,187,657.60/7,781,486.40 = 1,821,864.60/x
  3. Step 3: Cross multiply
    5,187,657.60x = 7,781,486.40 × 1,821,864.60
  4. Step 4: Simplify right side
    5,187,657.60x = 14,176,814,607,541.44
  5. Step 5: Solve for x
    x = 14,176,814,607,541.44/5,187,657.60
  6. Step 6: Final answer
    x = 2,732,796.90

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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.