Home / 217,223,420.40-325,835,130.60-168,850,479.60

Finding the Fourth Proportional to 217,223,420.40, 325,835,130.60 and 168,850,479.60

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Solution

The fourth proportional to 217,223,420.40, 325,835,130.60 and 168,850,479.60 is: 253,275,719.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,223,420.40 : 325,835,130.60 = 168,850,479.60 : x
  2. Step 2: Convert to fraction form
    217,223,420.40/325,835,130.60 = 168,850,479.60/x
  3. Step 3: Cross multiply
    217,223,420.40x = 325,835,130.60 × 168,850,479.60
  4. Step 4: Simplify right side
    217,223,420.40x = 55,017,418,072,338,640
  5. Step 5: Solve for x
    x = 55,017,418,072,338,640/217,223,420.40
  6. Step 6: Final answer
    x = 253,275,719.40

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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.