Home / 18,698,739.40-28,039,814.70-8,596,160.20

Finding the Fourth Proportional to 18,698,739.40, 28,039,814.70 and 8,596,160.20

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Solution

The fourth proportional to 18,698,739.40, 28,039,814.70 and 8,596,160.20 is: 12,890,427.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,698,739.40 : 28,039,814.70 = 8,596,160.20 : x
  2. Step 2: Convert to fraction form
    18,698,739.40/28,039,814.70 = 8,596,160.20/x
  3. Step 3: Cross multiply
    18,698,739.40x = 28,039,814.70 × 8,596,160.20
  4. Step 4: Simplify right side
    18,698,739.40x = 241,034,739,139,514.91
  5. Step 5: Solve for x
    x = 241,034,739,139,514.91/18,698,739.40
  6. Step 6: Final answer
    x = 12,890,427.21

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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.