Home / 645,234,116,623.35-967,374,034,777.25-390,206,803,234.92

Finding the Fourth Proportional to 645,234,116,623.35, 967,374,034,777.25 and 390,206,803,234.92

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Solution

The fourth proportional to 645,234,116,623.35, 967,374,034,777.25 and 390,206,803,234.92 is: 585,021,653,254.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,234,116,623.35 : 967,374,034,777.25 = 390,206,803,234.92 : x
  2. Step 2: Convert to fraction form
    645,234,116,623.35/967,374,034,777.25 = 390,206,803,234.92/x
  3. Step 3: Cross multiply
    645,234,116,623.35x = 967,374,034,777.25 × 390,206,803,234.92
  4. Step 4: Simplify right side
    645,234,116,623.35x = 377,475,929,642,897,002,987,520
  5. Step 5: Solve for x
    x = 377,475,929,642,897,002,987,520/645,234,116,623.35
  6. Step 6: Final answer
    x = 585,021,653,254.03

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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.