Home / 149,563,438.23-206,431,982.16-87,703,705.83

Finding the Fourth Proportional to 149,563,438.23, 206,431,982.16 and 87,703,705.83

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Solution

The fourth proportional to 149,563,438.23, 206,431,982.16 and 87,703,705.83 is: 121,051,308.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,563,438.23 : 206,431,982.16 = 87,703,705.83 : x
  2. Step 2: Convert to fraction form
    149,563,438.23/206,431,982.16 = 87,703,705.83/x
  3. Step 3: Cross multiply
    149,563,438.23x = 206,431,982.16 × 87,703,705.83
  4. Step 4: Simplify right side
    149,563,438.23x = 18,104,849,837,709,676
  5. Step 5: Solve for x
    x = 18,104,849,837,709,676/149,563,438.23
  6. Step 6: Final answer
    x = 121,051,308.07

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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.