Home / 147,123,998.56-203,047,064.50-81,051,267.60

Finding the Fourth Proportional to 147,123,998.56, 203,047,064.50 and 81,051,267.60

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Solution

The fourth proportional to 147,123,998.56, 203,047,064.50 and 81,051,267.60 is: 111,859,534.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,123,998.56 : 203,047,064.50 = 81,051,267.60 : x
  2. Step 2: Convert to fraction form
    147,123,998.56/203,047,064.50 = 81,051,267.60/x
  3. Step 3: Cross multiply
    147,123,998.56x = 203,047,064.50 × 81,051,267.60
  4. Step 4: Simplify right side
    147,123,998.56x = 16,457,221,960,183,958
  5. Step 5: Solve for x
    x = 16,457,221,960,183,958/147,123,998.56
  6. Step 6: Final answer
    x = 111,859,534.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.