Home / 384,914,821.80-577,372,232.70-312,355,410.60

Finding the Fourth Proportional to 384,914,821.80, 577,372,232.70 and 312,355,410.60

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Solution

The fourth proportional to 384,914,821.80, 577,372,232.70 and 312,355,410.60 is: 468,533,115.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,914,821.80 : 577,372,232.70 = 312,355,410.60 : x
  2. Step 2: Convert to fraction form
    384,914,821.80/577,372,232.70 = 312,355,410.60/x
  3. Step 3: Cross multiply
    384,914,821.80x = 577,372,232.70 × 312,355,410.60
  4. Step 4: Simplify right side
    384,914,821.80x = 180,345,340,814,047,264
  5. Step 5: Solve for x
    x = 180,345,340,814,047,264/384,914,821.80
  6. Step 6: Final answer
    x = 468,533,115.90

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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.