Home / 645,234,116,623.10-967,374,034,776.90-390,206,803,234.67

Finding the Fourth Proportional to 645,234,116,623.10, 967,374,034,776.90 and 390,206,803,234.67

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Solution

The fourth proportional to 645,234,116,623.10, 967,374,034,776.90 and 390,206,803,234.67 is: 585,021,653,253.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,234,116,623.10 : 967,374,034,776.90 = 390,206,803,234.67 : x
  2. Step 2: Convert to fraction form
    645,234,116,623.10/967,374,034,776.90 = 390,206,803,234.67/x
  3. Step 3: Cross multiply
    645,234,116,623.10x = 967,374,034,776.90 × 390,206,803,234.67
  4. Step 4: Simplify right side
    645,234,116,623.10x = 377,475,929,642,518,643,212,288
  5. Step 5: Solve for x
    x = 377,475,929,642,518,643,212,288/645,234,116,623.10
  6. Step 6: Final answer
    x = 585,021,653,253.67

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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.