Home / 258,226,238.70-387,362,618.93-83,353,418.91

Finding the Fourth Proportional to 258,226,238.70, 387,362,618.93 and 83,353,418.91

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Solution

The fourth proportional to 258,226,238.70, 387,362,618.93 and 83,353,418.91 is: 125,037,636.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,226,238.70 : 387,362,618.93 = 83,353,418.91 : x
  2. Step 2: Convert to fraction form
    258,226,238.70/387,362,618.93 = 83,353,418.91/x
  3. Step 3: Cross multiply
    258,226,238.70x = 387,362,618.93 × 83,353,418.91
  4. Step 4: Simplify right side
    258,226,238.70x = 32,287,998,645,955,368
  5. Step 5: Solve for x
    x = 32,287,998,645,955,368/258,226,238.70
  6. Step 6: Final answer
    x = 125,037,636.80

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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.