Home / 7,777,365.70-11,666,048.55-5,385,881.20

Finding the Fourth Proportional to 7,777,365.70, 11,666,048.55 and 5,385,881.20

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Solution

The fourth proportional to 7,777,365.70, 11,666,048.55 and 5,385,881.20 is: 8,078,821.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,777,365.70 : 11,666,048.55 = 5,385,881.20 : x
  2. Step 2: Convert to fraction form
    7,777,365.70/11,666,048.55 = 5,385,881.20/x
  3. Step 3: Cross multiply
    7,777,365.70x = 11,666,048.55 × 5,385,881.20
  4. Step 4: Simplify right side
    7,777,365.70x = 62,831,951,563,732.27
  5. Step 5: Solve for x
    x = 62,831,951,563,732.27/7,777,365.70
  6. Step 6: Final answer
    x = 8,078,821.80

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1.5x scale

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.