Home / 636,145,631.40-953,658,575.10-431,008,530.60

Finding the Fourth Proportional to 636,145,631.40, 953,658,575.10 and 431,008,530.60

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Solution

The fourth proportional to 636,145,631.40, 953,658,575.10 and 431,008,530.60 is: 646,133,465.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,145,631.40 : 953,658,575.10 = 431,008,530.60 : x
  2. Step 2: Convert to fraction form
    636,145,631.40/953,658,575.10 = 431,008,530.60/x
  3. Step 3: Cross multiply
    636,145,631.40x = 953,658,575.10 × 431,008,530.60
  4. Step 4: Simplify right side
    636,145,631.40x = 411,034,981,147,940,800
  5. Step 5: Solve for x
    x = 411,034,981,147,940,800/636,145,631.40
  6. Step 6: Final answer
    x = 646,133,465.14

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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.