Home / 21,030,146.40-31,545,219.60-9,062,882.40

Finding the Fourth Proportional to 21,030,146.40, 31,545,219.60 and 9,062,882.40

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Solution

The fourth proportional to 21,030,146.40, 31,545,219.60 and 9,062,882.40 is: 13,594,323.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,030,146.40 : 31,545,219.60 = 9,062,882.40 : x
  2. Step 2: Convert to fraction form
    21,030,146.40/31,545,219.60 = 9,062,882.40/x
  3. Step 3: Cross multiply
    21,030,146.40x = 31,545,219.60 × 9,062,882.40
  4. Step 4: Simplify right side
    21,030,146.40x = 285,890,615,516,975.06
  5. Step 5: Solve for x
    x = 285,890,615,516,975.06/21,030,146.40
  6. Step 6: Final answer
    x = 13,594,323.60

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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.