Home / 21,304,042.80-31,956,064.20-8,526,519.60

Finding the Fourth Proportional to 21,304,042.80, 31,956,064.20 and 8,526,519.60

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Solution

The fourth proportional to 21,304,042.80, 31,956,064.20 and 8,526,519.60 is: 12,789,779.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,304,042.80 : 31,956,064.20 = 8,526,519.60 : x
  2. Step 2: Convert to fraction form
    21,304,042.80/31,956,064.20 = 8,526,519.60/x
  3. Step 3: Cross multiply
    21,304,042.80x = 31,956,064.20 × 8,526,519.60
  4. Step 4: Simplify right side
    21,304,042.80x = 272,474,007,740,158.31
  5. Step 5: Solve for x
    x = 272,474,007,740,158.31/21,304,042.80
  6. Step 6: Final answer
    x = 12,789,779.40

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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.