Home / 385,372,178.20-577,890,305.70-155,264,786.20

Finding the Fourth Proportional to 385,372,178.20, 577,890,305.70 and 155,264,786.20

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Solution

The fourth proportional to 385,372,178.20, 577,890,305.70 and 155,264,786.20 is: 232,829,508.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,372,178.20 : 577,890,305.70 = 155,264,786.20 : x
  2. Step 2: Convert to fraction form
    385,372,178.20/577,890,305.70 = 155,264,786.20/x
  3. Step 3: Cross multiply
    385,372,178.20x = 577,890,305.70 × 155,264,786.20
  4. Step 4: Simplify right side
    385,372,178.20x = 89,726,014,761,563,136
  5. Step 5: Solve for x
    x = 89,726,014,761,563,136/385,372,178.20
  6. Step 6: Final answer
    x = 232,829,508.30

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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.