Home / 142,243,272.62-196,327,294.86-86,476,843.38

Finding the Fourth Proportional to 142,243,272.62, 196,327,294.86 and 86,476,843.38

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Solution

The fourth proportional to 142,243,272.62, 196,327,294.86 and 86,476,843.38 is: 119,357,242.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,243,272.62 : 196,327,294.86 = 86,476,843.38 : x
  2. Step 2: Convert to fraction form
    142,243,272.62/196,327,294.86 = 86,476,843.38/x
  3. Step 3: Cross multiply
    142,243,272.62x = 196,327,294.86 × 86,476,843.38
  4. Step 4: Simplify right side
    142,243,272.62x = 16,977,764,728,827,300
  5. Step 5: Solve for x
    x = 16,977,764,728,827,300/142,243,272.62
  6. Step 6: Final answer
    x = 119,357,242.11

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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.