Home / 13,118,912.70-19,686,663.45-7,727,552.70

Finding the Fourth Proportional to 13,118,912.70, 19,686,663.45 and 7,727,552.70

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Solution

The fourth proportional to 13,118,912.70, 19,686,663.45 and 7,727,552.70 is: 11,596,214.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,118,912.70 : 19,686,663.45 = 7,727,552.70 : x
  2. Step 2: Convert to fraction form
    13,118,912.70/19,686,663.45 = 7,727,552.70/x
  3. Step 3: Cross multiply
    13,118,912.70x = 19,686,663.45 × 7,727,552.70
  4. Step 4: Simplify right side
    13,118,912.70x = 152,129,729,297,038.81
  5. Step 5: Solve for x
    x = 152,129,729,297,038.81/13,118,912.70
  6. Step 6: Final answer
    x = 11,596,214.78

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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.