Home / 12,740,990.40-19,117,015.20-6,437,246.40

Finding the Fourth Proportional to 12,740,990.40, 19,117,015.20 and 6,437,246.40

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Solution

The fourth proportional to 12,740,990.40, 19,117,015.20 and 6,437,246.40 is: 9,658,663.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,740,990.40 : 19,117,015.20 = 6,437,246.40 : x
  2. Step 2: Convert to fraction form
    12,740,990.40/19,117,015.20 = 6,437,246.40/x
  3. Step 3: Cross multiply
    12,740,990.40x = 19,117,015.20 × 6,437,246.40
  4. Step 4: Simplify right side
    12,740,990.40x = 123,060,937,274,945.28
  5. Step 5: Solve for x
    x = 123,060,937,274,945.28/12,740,990.40
  6. Step 6: Final answer
    x = 9,658,663.37

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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.