Home / 278,208,021.60-416,976,109.20-141,823,202.40

Finding the Fourth Proportional to 278,208,021.60, 416,976,109.20 and 141,823,202.40

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Solution

The fourth proportional to 278,208,021.60, 416,976,109.20 and 141,823,202.40 is: 212,563,558.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,208,021.60 : 416,976,109.20 = 141,823,202.40 : x
  2. Step 2: Convert to fraction form
    278,208,021.60/416,976,109.20 = 141,823,202.40/x
  3. Step 3: Cross multiply
    278,208,021.60x = 416,976,109.20 × 141,823,202.40
  4. Step 4: Simplify right side
    278,208,021.60x = 59,136,887,131,036,104
  5. Step 5: Solve for x
    x = 59,136,887,131,036,104/278,208,021.60
  6. Step 6: Final answer
    x = 212,563,558.70

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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.