Home / 13,195,012.80-19,780,999.20-5,113,502.40

Finding the Fourth Proportional to 13,195,012.80, 19,780,999.20 and 5,113,502.40

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Solution

The fourth proportional to 13,195,012.80, 19,780,999.20 and 5,113,502.40 is: 7,665,789.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195,012.80 : 19,780,999.20 = 5,113,502.40 : x
  2. Step 2: Convert to fraction form
    13,195,012.80/19,780,999.20 = 5,113,502.40/x
  3. Step 3: Cross multiply
    13,195,012.80x = 19,780,999.20 × 5,113,502.40
  4. Step 4: Simplify right side
    13,195,012.80x = 101,150,186,883,598.08
  5. Step 5: Solve for x
    x = 101,150,186,883,598.08/13,195,012.80
  6. Step 6: Final answer
    x = 7,665,789.22

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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.