Home / 397,303,084.12-548,273,905.16-218,683,153.53

Finding the Fourth Proportional to 397,303,084.12, 548,273,905.16 and 218,683,153.53

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Solution

The fourth proportional to 397,303,084.12, 548,273,905.16 and 218,683,153.53 is: 301,780,357.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,303,084.12 : 548,273,905.16 = 218,683,153.53 : x
  2. Step 2: Convert to fraction form
    397,303,084.12/548,273,905.16 = 218,683,153.53/x
  3. Step 3: Cross multiply
    397,303,084.12x = 548,273,905.16 × 218,683,153.53
  4. Step 4: Simplify right side
    397,303,084.12x = 119,898,266,578,596,928
  5. Step 5: Solve for x
    x = 119,898,266,578,596,928/397,303,084.12
  6. Step 6: Final answer
    x = 301,780,357.04

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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.