Home / 258,049,139.80-387,073,709.70-87,848,051.80

Finding the Fourth Proportional to 258,049,139.80, 387,073,709.70 and 87,848,051.80

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Solution

The fourth proportional to 258,049,139.80, 387,073,709.70 and 87,848,051.80 is: 131,772,077.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,049,139.80 : 387,073,709.70 = 87,848,051.80 : x
  2. Step 2: Convert to fraction form
    258,049,139.80/387,073,709.70 = 87,848,051.80/x
  3. Step 3: Cross multiply
    258,049,139.80x = 387,073,709.70 × 87,848,051.80
  4. Step 4: Simplify right side
    258,049,139.80x = 34,003,671,300,143,760
  5. Step 5: Solve for x
    x = 34,003,671,300,143,760/258,049,139.80
  6. Step 6: Final answer
    x = 131,772,077.70

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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.