Home / 153,923,771.96-212,412,179.88-83,358,809

Finding the Fourth Proportional to 153,923,771.96, 212,412,179.88 and 83,358,809

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Solution

The fourth proportional to 153,923,771.96, 212,412,179.88 and 83,358,809 is: 115,033,734.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,923,771.96 : 212,412,179.88 = 83,358,809 : x
  2. Step 2: Convert to fraction form
    153,923,771.96/212,412,179.88 = 83,358,809/x
  3. Step 3: Cross multiply
    153,923,771.96x = 212,412,179.88 × 83,358,809
  4. Step 4: Simplify right side
    153,923,771.96x = 17,706,426,331,890,562
  5. Step 5: Solve for x
    x = 17,706,426,331,890,562/153,923,771.96
  6. Step 6: Final answer
    x = 115,033,734.60

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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.