Home / 376,098,529.12-519,013,261.78-208,833,969.76

Finding the Fourth Proportional to 376,098,529.12, 519,013,261.78 and 208,833,969.76

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Solution

The fourth proportional to 376,098,529.12, 519,013,261.78 and 208,833,969.76 is: 288,189,374.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,098,529.12 : 519,013,261.78 = 208,833,969.76 : x
  2. Step 2: Convert to fraction form
    376,098,529.12/519,013,261.78 = 208,833,969.76/x
  3. Step 3: Cross multiply
    376,098,529.12x = 519,013,261.78 × 208,833,969.76
  4. Step 4: Simplify right side
    376,098,529.12x = 108,387,599,815,603,472
  5. Step 5: Solve for x
    x = 108,387,599,815,603,472/376,098,529.12
  6. Step 6: Final answer
    x = 288,189,374.39

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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.