Home / 346,982,731.47-478,833,335.32-188,212,456.98

Finding the Fourth Proportional to 346,982,731.47, 478,833,335.32 and 188,212,456.98

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Solution

The fourth proportional to 346,982,731.47, 478,833,335.32 and 188,212,456.98 is: 259,731,653.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,982,731.47 : 478,833,335.32 = 188,212,456.98 : x
  2. Step 2: Convert to fraction form
    346,982,731.47/478,833,335.32 = 188,212,456.98/x
  3. Step 3: Cross multiply
    346,982,731.47x = 478,833,335.32 × 188,212,456.98
  4. Step 4: Simplify right side
    346,982,731.47x = 90,122,398,524,505,408
  5. Step 5: Solve for x
    x = 90,122,398,524,505,408/346,982,731.47
  6. Step 6: Final answer
    x = 259,731,653.34

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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.