Home / 21,284,883.60-31,927,325.40-12,304,813.20

Finding the Fourth Proportional to 21,284,883.60, 31,927,325.40 and 12,304,813.20

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Solution

The fourth proportional to 21,284,883.60, 31,927,325.40 and 12,304,813.20 is: 18,457,219.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,284,883.60 : 31,927,325.40 = 12,304,813.20 : x
  2. Step 2: Convert to fraction form
    21,284,883.60/31,927,325.40 = 12,304,813.20/x
  3. Step 3: Cross multiply
    21,284,883.60x = 31,927,325.40 × 12,304,813.20
  4. Step 4: Simplify right side
    21,284,883.60x = 392,859,775,022,615.25
  5. Step 5: Solve for x
    x = 392,859,775,022,615.25/21,284,883.60
  6. Step 6: Final answer
    x = 18,457,219.80

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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.