Home / 21,318,043.20-31,977,064.80-14,515,598.40

Finding the Fourth Proportional to 21,318,043.20, 31,977,064.80 and 14,515,598.40

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Solution

The fourth proportional to 21,318,043.20, 31,977,064.80 and 14,515,598.40 is: 21,773,397.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,318,043.20 : 31,977,064.80 = 14,515,598.40 : x
  2. Step 2: Convert to fraction form
    21,318,043.20/31,977,064.80 = 14,515,598.40/x
  3. Step 3: Cross multiply
    21,318,043.20x = 31,977,064.80 × 14,515,598.40
  4. Step 4: Simplify right side
    21,318,043.20x = 464,166,230,647,576.31
  5. Step 5: Solve for x
    x = 464,166,230,647,576.31/21,318,043.20
  6. Step 6: Final answer
    x = 21,773,397.60

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Similar ratio
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1.5x scale

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.