Home / 645,148,001.40-967,722,002.10-214,326,497.40

Finding the Fourth Proportional to 645,148,001.40, 967,722,002.10 and 214,326,497.40

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Solution

The fourth proportional to 645,148,001.40, 967,722,002.10 and 214,326,497.40 is: 321,489,746.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,148,001.40 : 967,722,002.10 = 214,326,497.40 : x
  2. Step 2: Convert to fraction form
    645,148,001.40/967,722,002.10 = 214,326,497.40/x
  3. Step 3: Cross multiply
    645,148,001.40x = 967,722,002.10 × 214,326,497.40
  4. Step 4: Simplify right side
    645,148,001.40x = 207,408,467,167,008,448
  5. Step 5: Solve for x
    x = 207,408,467,167,008,448/645,148,001.40
  6. Step 6: Final answer
    x = 321,489,746.10

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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.