Home / 127,817,999.80-191,726,999.70-76,673,692.60

Finding the Fourth Proportional to 127,817,999.80, 191,726,999.70 and 76,673,692.60

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Solution

The fourth proportional to 127,817,999.80, 191,726,999.70 and 76,673,692.60 is: 115,010,538.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,817,999.80 : 191,726,999.70 = 76,673,692.60 : x
  2. Step 2: Convert to fraction form
    127,817,999.80/191,726,999.70 = 76,673,692.60/x
  3. Step 3: Cross multiply
    127,817,999.80x = 191,726,999.70 × 76,673,692.60
  4. Step 4: Simplify right side
    127,817,999.80x = 14,700,417,038,118,090
  5. Step 5: Solve for x
    x = 14,700,417,038,118,090/127,817,999.80
  6. Step 6: Final answer
    x = 115,010,538.90

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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.