Home / 840,118,627.20-1,260,177,940.80-726,872,419.20

Finding the Fourth Proportional to 840,118,627.20, 1,260,177,940.80 and 726,872,419.20

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Solution

The fourth proportional to 840,118,627.20, 1,260,177,940.80 and 726,872,419.20 is: 1,090,308,628.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,118,627.20 : 1,260,177,940.80 = 726,872,419.20 : x
  2. Step 2: Convert to fraction form
    840,118,627.20/1,260,177,940.80 = 726,872,419.20/x
  3. Step 3: Cross multiply
    840,118,627.20x = 1,260,177,940.80 × 726,872,419.20
  4. Step 4: Simplify right side
    840,118,627.20x = 915,988,588,451,770,368
  5. Step 5: Solve for x
    x = 915,988,588,451,770,368/840,118,627.20
  6. Step 6: Final answer
    x = 1,090,308,628.80

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1.5x scale

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.