Home / 53,235,784.40-79,853,417.40-20,864,814.80

Finding the Fourth Proportional to 53,235,784.40, 79,853,417.40 and 20,864,814.80

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Solution

The fourth proportional to 53,235,784.40, 79,853,417.40 and 20,864,814.80 is: 31,297,120.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,235,784.40 : 79,853,417.40 = 20,864,814.80 : x
  2. Step 2: Convert to fraction form
    53,235,784.40/79,853,417.40 = 20,864,814.80/x
  3. Step 3: Cross multiply
    53,235,784.40x = 79,853,417.40 × 20,864,814.80
  4. Step 4: Simplify right side
    53,235,784.40x = 1,666,126,765,198,097.75
  5. Step 5: Solve for x
    x = 1,666,126,765,198,097.75/53,235,784.40
  6. Step 6: Final answer
    x = 31,297,120.61

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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.