Home / 12,937,647.40-19,406,471.10-12,307,791.40

Finding the Fourth Proportional to 12,937,647.40, 19,406,471.10 and 12,307,791.40

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Solution

The fourth proportional to 12,937,647.40, 19,406,471.10 and 12,307,791.40 is: 18,461,687.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,937,647.40 : 19,406,471.10 = 12,307,791.40 : x
  2. Step 2: Convert to fraction form
    12,937,647.40/19,406,471.10 = 12,307,791.40/x
  3. Step 3: Cross multiply
    12,937,647.40x = 19,406,471.10 × 12,307,791.40
  4. Step 4: Simplify right side
    12,937,647.40x = 238,850,798,108,928.56
  5. Step 5: Solve for x
    x = 238,850,798,108,928.56/12,937,647.40
  6. Step 6: Final answer
    x = 18,461,687.10

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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.