Home / 12,449,852.70-18,674,779.05-7,641,951.90

Finding the Fourth Proportional to 12,449,852.70, 18,674,779.05 and 7,641,951.90

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Solution

The fourth proportional to 12,449,852.70, 18,674,779.05 and 7,641,951.90 is: 11,462,927.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,449,852.70 : 18,674,779.05 = 7,641,951.90 : x
  2. Step 2: Convert to fraction form
    12,449,852.70/18,674,779.05 = 7,641,951.90/x
  3. Step 3: Cross multiply
    12,449,852.70x = 18,674,779.05 × 7,641,951.90
  4. Step 4: Simplify right side
    12,449,852.70x = 142,711,763,243,227.72
  5. Step 5: Solve for x
    x = 142,711,763,243,227.72/12,449,852.70
  6. Step 6: Final answer
    x = 11,462,927.85

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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.