Home / 20,681,509.59-28,539,562.58-11,854,632.85

Finding the Fourth Proportional to 20,681,509.59, 28,539,562.58 and 11,854,632.85

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Solution

The fourth proportional to 20,681,509.59, 28,539,562.58 and 11,854,632.85 is: 16,358,865.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,681,509.59 : 28,539,562.58 = 11,854,632.85 : x
  2. Step 2: Convert to fraction form
    20,681,509.59/28,539,562.58 = 11,854,632.85/x
  3. Step 3: Cross multiply
    20,681,509.59x = 28,539,562.58 × 11,854,632.85
  4. Step 4: Simplify right side
    20,681,509.59x = 338,326,036,085,498.75
  5. Step 5: Solve for x
    x = 338,326,036,085,498.75/20,681,509.59
  6. Step 6: Final answer
    x = 16,358,865.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.