Home / 684,962,928.34-945,248,841.20-371,697,142.31

Finding the Fourth Proportional to 684,962,928.34, 945,248,841.20 and 371,697,142.31

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Solution

The fourth proportional to 684,962,928.34, 945,248,841.20 and 371,697,142.31 is: 512,942,056.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,962,928.34 : 945,248,841.20 = 371,697,142.31 : x
  2. Step 2: Convert to fraction form
    684,962,928.34/945,248,841.20 = 371,697,142.31/x
  3. Step 3: Cross multiply
    684,962,928.34x = 945,248,841.20 × 371,697,142.31
  4. Step 4: Simplify right side
    684,962,928.34x = 351,346,293,046,383,616
  5. Step 5: Solve for x
    x = 351,346,293,046,383,616/684,962,928.34
  6. Step 6: Final answer
    x = 512,942,056.44

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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.