Home / 387,306,394.86-534,494,026.59-211,105,802.73

Finding the Fourth Proportional to 387,306,394.86, 534,494,026.59 and 211,105,802.73

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Solution

The fourth proportional to 387,306,394.86, 534,494,026.59 and 211,105,802.73 is: 291,332,113.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,306,394.86 : 534,494,026.59 = 211,105,802.73 : x
  2. Step 2: Convert to fraction form
    387,306,394.86/534,494,026.59 = 211,105,802.73/x
  3. Step 3: Cross multiply
    387,306,394.86x = 534,494,026.59 × 211,105,802.73
  4. Step 4: Simplify right side
    387,306,394.86x = 112,834,790,537,671,904
  5. Step 5: Solve for x
    x = 112,834,790,537,671,904/387,306,394.86
  6. Step 6: Final answer
    x = 291,332,113.37

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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.