Home / 217,856,561.40-326,448,918.90-188,967,166.20

Finding the Fourth Proportional to 217,856,561.40, 326,448,918.90 and 188,967,166.20

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Solution

The fourth proportional to 217,856,561.40, 326,448,918.90 and 188,967,166.20 is: 283,159,372.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,856,561.40 : 326,448,918.90 = 188,967,166.20 : x
  2. Step 2: Convert to fraction form
    217,856,561.40/326,448,918.90 = 188,967,166.20/x
  3. Step 3: Cross multiply
    217,856,561.40x = 326,448,918.90 × 188,967,166.20
  4. Step 4: Simplify right side
    217,856,561.40x = 61,688,127,113,586,616
  5. Step 5: Solve for x
    x = 61,688,127,113,586,616/217,856,561.40
  6. Step 6: Final answer
    x = 283,159,372.01

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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.