Home / 655,379,539.55-983,077,828.49-218,680,223.75

Finding the Fourth Proportional to 655,379,539.55, 983,077,828.49 and 218,680,223.75

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Solution

The fourth proportional to 655,379,539.55, 983,077,828.49 and 218,680,223.75 is: 328,023,178.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,379,539.55 : 983,077,828.49 = 218,680,223.75 : x
  2. Step 2: Convert to fraction form
    655,379,539.55/983,077,828.49 = 218,680,223.75/x
  3. Step 3: Cross multiply
    655,379,539.55x = 983,077,828.49 × 218,680,223.75
  4. Step 4: Simplify right side
    655,379,539.55x = 214,979,679,496,551,936
  5. Step 5: Solve for x
    x = 214,979,679,496,551,936/655,379,539.55
  6. Step 6: Final answer
    x = 328,023,178.21

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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.