Home / 127,395,123.20-191,092,684.80-42,294,579.20

Finding the Fourth Proportional to 127,395,123.20, 191,092,684.80 and 42,294,579.20

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Solution

The fourth proportional to 127,395,123.20, 191,092,684.80 and 42,294,579.20 is: 63,441,868.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,395,123.20 : 191,092,684.80 = 42,294,579.20 : x
  2. Step 2: Convert to fraction form
    127,395,123.20/191,092,684.80 = 42,294,579.20/x
  3. Step 3: Cross multiply
    127,395,123.20x = 191,092,684.80 × 42,294,579.20
  4. Step 4: Simplify right side
    127,395,123.20x = 8,082,184,691,814,237
  5. Step 5: Solve for x
    x = 8,082,184,691,814,237/127,395,123.20
  6. Step 6: Final answer
    x = 63,441,868.80

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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.