Home / 13,182,663.80-19,785,659.70-7,784,564.60

Finding the Fourth Proportional to 13,182,663.80, 19,785,659.70 and 7,784,564.60

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Solution

The fourth proportional to 13,182,663.80, 19,785,659.70 and 7,784,564.60 is: 11,683,734.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,182,663.80 : 19,785,659.70 = 7,784,564.60 : x
  2. Step 2: Convert to fraction form
    13,182,663.80/19,785,659.70 = 7,784,564.60/x
  3. Step 3: Cross multiply
    13,182,663.80x = 19,785,659.70 × 7,784,564.60
  4. Step 4: Simplify right side
    13,182,663.80x = 154,022,746,088,266.59
  5. Step 5: Solve for x
    x = 154,022,746,088,266.59/13,182,663.80
  6. Step 6: Final answer
    x = 11,683,734.67

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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.