Home / 57,525,128.40-86,287,692.60-19,187,893.20

Finding the Fourth Proportional to 57,525,128.40, 86,287,692.60 and 19,187,893.20

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Solution

The fourth proportional to 57,525,128.40, 86,287,692.60 and 19,187,893.20 is: 28,781,839.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,525,128.40 : 86,287,692.60 = 19,187,893.20 : x
  2. Step 2: Convert to fraction form
    57,525,128.40/86,287,692.60 = 19,187,893.20/x
  3. Step 3: Cross multiply
    57,525,128.40x = 86,287,692.60 × 19,187,893.20
  4. Step 4: Simplify right side
    57,525,128.40x = 1,655,679,030,083,230.25
  5. Step 5: Solve for x
    x = 1,655,679,030,083,230.25/57,525,128.40
  6. Step 6: Final answer
    x = 28,781,839.80

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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.