Home / 146,233,403.72-219,623,298.78-128,732,165.84

Finding the Fourth Proportional to 146,233,403.72, 219,623,298.78 and 128,732,165.84

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Solution

The fourth proportional to 146,233,403.72, 219,623,298.78 and 128,732,165.84 is: 193,338,746.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,233,403.72 : 219,623,298.78 = 128,732,165.84 : x
  2. Step 2: Convert to fraction form
    146,233,403.72/219,623,298.78 = 128,732,165.84/x
  3. Step 3: Cross multiply
    146,233,403.72x = 219,623,298.78 × 128,732,165.84
  4. Step 4: Simplify right side
    146,233,403.72x = 28,272,582,920,874,832
  5. Step 5: Solve for x
    x = 28,272,582,920,874,832/146,233,403.72
  6. Step 6: Final answer
    x = 193,338,746.15

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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.