Home / 127,823,828.80-191,830,221.60-84,678,692.80

Finding the Fourth Proportional to 127,823,828.80, 191,830,221.60 and 84,678,692.80

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Solution

The fourth proportional to 127,823,828.80, 191,830,221.60 and 84,678,692.80 is: 127,080,627.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,823,828.80 : 191,830,221.60 = 84,678,692.80 : x
  2. Step 2: Convert to fraction form
    127,823,828.80/191,830,221.60 = 84,678,692.80/x
  3. Step 3: Cross multiply
    127,823,828.80x = 191,830,221.60 × 84,678,692.80
  4. Step 4: Simplify right side
    127,823,828.80x = 16,243,932,404,622,324
  5. Step 5: Solve for x
    x = 16,243,932,404,622,324/127,823,828.80
  6. Step 6: Final answer
    x = 127,080,627.74

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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.