Home / 209,975,619.20-314,963,428.80-82,324,803.20

Finding the Fourth Proportional to 209,975,619.20, 314,963,428.80 and 82,324,803.20

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Solution

The fourth proportional to 209,975,619.20, 314,963,428.80 and 82,324,803.20 is: 123,487,204.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,975,619.20 : 314,963,428.80 = 82,324,803.20 : x
  2. Step 2: Convert to fraction form
    209,975,619.20/314,963,428.80 = 82,324,803.20/x
  3. Step 3: Cross multiply
    209,975,619.20x = 314,963,428.80 × 82,324,803.20
  4. Step 4: Simplify right side
    209,975,619.20x = 25,929,302,291,157,216
  5. Step 5: Solve for x
    x = 25,929,302,291,157,216/209,975,619.20
  6. Step 6: Final answer
    x = 123,487,204.80

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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.