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Finding the Fourth Proportional to 217,735,200.90, 305,232,389.10 and 217,735,200.90

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Solution

The fourth proportional to 217,735,200.90, 305,232,389.10 and 217,735,200.90 is: 305,232,389.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,735,200.90 : 305,232,389.10 = 217,735,200.90 : x
  2. Step 2: Convert to fraction form
    217,735,200.90/305,232,389.10 = 217,735,200.90/x
  3. Step 3: Cross multiply
    217,735,200.90x = 305,232,389.10 × 217,735,200.90
  4. Step 4: Simplify right side
    217,735,200.90x = 66,459,835,561,875,480
  5. Step 5: Solve for x
    x = 66,459,835,561,875,480/217,735,200.90
  6. Step 6: Final answer
    x = 305,232,389.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.