Home / 7,776,381.40-11,664,572.10-7,440,458.20

Finding the Fourth Proportional to 7,776,381.40, 11,664,572.10 and 7,440,458.20

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Solution

The fourth proportional to 7,776,381.40, 11,664,572.10 and 7,440,458.20 is: 11,160,687.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,776,381.40 : 11,664,572.10 = 7,440,458.20 : x
  2. Step 2: Convert to fraction form
    7,776,381.40/11,664,572.10 = 7,440,458.20/x
  3. Step 3: Cross multiply
    7,776,381.40x = 11,664,572.10 × 7,440,458.20
  4. Step 4: Simplify right side
    7,776,381.40x = 86,789,761,130,936.22
  5. Step 5: Solve for x
    x = 86,789,761,130,936.22/7,776,381.40
  6. Step 6: Final answer
    x = 11,160,687.30

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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.