Home / 19,138,814.10-28,708,221.15-18,886,871.70

Finding the Fourth Proportional to 19,138,814.10, 28,708,221.15 and 18,886,871.70

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Solution

The fourth proportional to 19,138,814.10, 28,708,221.15 and 18,886,871.70 is: 28,330,307.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,138,814.10 : 28,708,221.15 = 18,886,871.70 : x
  2. Step 2: Convert to fraction form
    19,138,814.10/28,708,221.15 = 18,886,871.70/x
  3. Step 3: Cross multiply
    19,138,814.10x = 28,708,221.15 × 18,886,871.70
  4. Step 4: Simplify right side
    19,138,814.10x = 542,208,489,595,276.38
  5. Step 5: Solve for x
    x = 542,208,489,595,276.38/19,138,814.10
  6. Step 6: Final answer
    x = 28,330,307.55

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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.