Home / 12,756,316.20-19,134,474.30-12,543,739.80

Finding the Fourth Proportional to 12,756,316.20, 19,134,474.30 and 12,543,739.80

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Solution

The fourth proportional to 12,756,316.20, 19,134,474.30 and 12,543,739.80 is: 18,815,609.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,756,316.20 : 19,134,474.30 = 12,543,739.80 : x
  2. Step 2: Convert to fraction form
    12,756,316.20/19,134,474.30 = 12,543,739.80/x
  3. Step 3: Cross multiply
    12,756,316.20x = 19,134,474.30 × 12,543,739.80
  4. Step 4: Simplify right side
    12,756,316.20x = 240,017,866,828,987.16
  5. Step 5: Solve for x
    x = 240,017,866,828,987.16/12,756,316.20
  6. Step 6: Final answer
    x = 18,815,609.70

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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.