Home / 21,032,409.60-31,548,614.40-20,040,386.40

Finding the Fourth Proportional to 21,032,409.60, 31,548,614.40 and 20,040,386.40

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Solution

The fourth proportional to 21,032,409.60, 31,548,614.40 and 20,040,386.40 is: 30,060,579.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,032,409.60 : 31,548,614.40 = 20,040,386.40 : x
  2. Step 2: Convert to fraction form
    21,032,409.60/31,548,614.40 = 20,040,386.40/x
  3. Step 3: Cross multiply
    21,032,409.60x = 31,548,614.40 × 20,040,386.40
  4. Step 4: Simplify right side
    21,032,409.60x = 632,246,422,960,604.12
  5. Step 5: Solve for x
    x = 632,246,422,960,604.12/21,032,409.60
  6. Step 6: Final answer
    x = 30,060,579.60

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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.