Home / 12,960,090.40-19,430,804.40-7,282,055.20

Finding the Fourth Proportional to 12,960,090.40, 19,430,804.40 and 7,282,055.20

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Solution

The fourth proportional to 12,960,090.40, 19,430,804.40 and 7,282,055.20 is: 10,917,839.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,960,090.40 : 19,430,804.40 = 7,282,055.20 : x
  2. Step 2: Convert to fraction form
    12,960,090.40/19,430,804.40 = 7,282,055.20/x
  3. Step 3: Cross multiply
    12,960,090.40x = 19,430,804.40 × 7,282,055.20
  4. Step 4: Simplify right side
    12,960,090.40x = 141,496,190,221,202.88
  5. Step 5: Solve for x
    x = 141,496,190,221,202.88/12,960,090.40
  6. Step 6: Final answer
    x = 10,917,839.76

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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.