Home / 258,047,849.70-356,105,875.59-142,154,345.70

Finding the Fourth Proportional to 258,047,849.70, 356,105,875.59 and 142,154,345.70

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Solution

The fourth proportional to 258,047,849.70, 356,105,875.59 and 142,154,345.70 is: 196,172,910.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,047,849.70 : 356,105,875.59 = 142,154,345.70 : x
  2. Step 2: Convert to fraction form
    258,047,849.70/356,105,875.59 = 142,154,345.70/x
  3. Step 3: Cross multiply
    258,047,849.70x = 356,105,875.59 × 142,154,345.70
  4. Step 4: Simplify right side
    258,047,849.70x = 50,621,997,744,422,040
  5. Step 5: Solve for x
    x = 50,621,997,744,422,040/258,047,849.70
  6. Step 6: Final answer
    x = 196,172,910.58

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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.