Home / 13,129,399.40-19,714,374.30-7,157,431.40

Finding the Fourth Proportional to 13,129,399.40, 19,714,374.30 and 7,157,431.40

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Solution

The fourth proportional to 13,129,399.40, 19,714,374.30 and 7,157,431.40 is: 10,747,200.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,129,399.40 : 19,714,374.30 = 7,157,431.40 : x
  2. Step 2: Convert to fraction form
    13,129,399.40/19,714,374.30 = 7,157,431.40/x
  3. Step 3: Cross multiply
    13,129,399.40x = 19,714,374.30 × 7,157,431.40
  4. Step 4: Simplify right side
    13,129,399.40x = 141,104,281,646,173.03
  5. Step 5: Solve for x
    x = 141,104,281,646,173.03/13,129,399.40
  6. Step 6: Final answer
    x = 10,747,200.03

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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.