Home / 219,654,718.21-303,128,142-120,534,598.58

Finding the Fourth Proportional to 219,654,718.21, 303,128,142 and 120,534,598.58

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Solution

The fourth proportional to 219,654,718.21, 303,128,142 and 120,534,598.58 is: 166,340,287.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,654,718.21 : 303,128,142 = 120,534,598.58 : x
  2. Step 2: Convert to fraction form
    219,654,718.21/303,128,142 = 120,534,598.58/x
  3. Step 3: Cross multiply
    219,654,718.21x = 303,128,142 × 120,534,598.58
  4. Step 4: Simplify right side
    219,654,718.21x = 36,537,428,914,271,240
  5. Step 5: Solve for x
    x = 36,537,428,914,271,240/219,654,718.21
  6. Step 6: Final answer
    x = 166,340,287.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.