Home / 442,960,030.90-664,440,046.35-212,873,634.10

Finding the Fourth Proportional to 442,960,030.90, 664,440,046.35 and 212,873,634.10

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Solution

The fourth proportional to 442,960,030.90, 664,440,046.35 and 212,873,634.10 is: 319,310,451.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,960,030.90 : 664,440,046.35 = 212,873,634.10 : x
  2. Step 2: Convert to fraction form
    442,960,030.90/664,440,046.35 = 212,873,634.10/x
  3. Step 3: Cross multiply
    442,960,030.90x = 664,440,046.35 × 212,873,634.10
  4. Step 4: Simplify right side
    442,960,030.90x = 141,441,767,308,096,944
  5. Step 5: Solve for x
    x = 141,441,767,308,096,944/442,960,030.90
  6. Step 6: Final answer
    x = 319,310,451.15

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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.