Home / 418,629,794.40-627,972,685.20-142,276,975.20

Finding the Fourth Proportional to 418,629,794.40, 627,972,685.20 and 142,276,975.20

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Solution

The fourth proportional to 418,629,794.40, 627,972,685.20 and 142,276,975.20 is: 213,424,976.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,629,794.40 : 627,972,685.20 = 142,276,975.20 : x
  2. Step 2: Convert to fraction form
    418,629,794.40/627,972,685.20 = 142,276,975.20/x
  3. Step 3: Cross multiply
    418,629,794.40x = 627,972,685.20 × 142,276,975.20
  4. Step 4: Simplify right side
    418,629,794.40x = 89,346,054,158,477,808
  5. Step 5: Solve for x
    x = 89,346,054,158,477,808/418,629,794.40
  6. Step 6: Final answer
    x = 213,424,976.80

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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.