Home / 380,712,979.86-571,071,440.43-173,306,342.73

Finding the Fourth Proportional to 380,712,979.86, 571,071,440.43 and 173,306,342.73

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Solution

The fourth proportional to 380,712,979.86, 571,071,440.43 and 173,306,342.73 is: 259,960,411.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,712,979.86 : 571,071,440.43 = 173,306,342.73 : x
  2. Step 2: Convert to fraction form
    380,712,979.86/571,071,440.43 = 173,306,342.73/x
  3. Step 3: Cross multiply
    380,712,979.86x = 571,071,440.43 × 173,306,342.73
  4. Step 4: Simplify right side
    380,712,979.86x = 98,970,302,778,476,336
  5. Step 5: Solve for x
    x = 98,970,302,778,476,336/380,712,979.86
  6. Step 6: Final answer
    x = 259,960,411.16

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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.