Home / 12,475,903.80-18,711,231.30-5,287,672.20

Finding the Fourth Proportional to 12,475,903.80, 18,711,231.30 and 5,287,672.20

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Solution

The fourth proportional to 12,475,903.80, 18,711,231.30 and 5,287,672.20 is: 7,930,396.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,475,903.80 : 18,711,231.30 = 5,287,672.20 : x
  2. Step 2: Convert to fraction form
    12,475,903.80/18,711,231.30 = 5,287,672.20/x
  3. Step 3: Cross multiply
    12,475,903.80x = 18,711,231.30 × 5,287,672.20
  4. Step 4: Simplify right side
    12,475,903.80x = 98,938,857,572,779.88
  5. Step 5: Solve for x
    x = 98,938,857,572,779.88/12,475,903.80
  6. Step 6: Final answer
    x = 7,930,396.00

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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.