Home / 1,242,171,624.90-1,861,674,924.15-660,184,680.90

Finding the Fourth Proportional to 1,242,171,624.90, 1,861,674,924.15 and 660,184,680.90

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Solution

The fourth proportional to 1,242,171,624.90, 1,861,674,924.15 and 660,184,680.90 is: 989,435,953.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,171,624.90 : 1,861,674,924.15 = 660,184,680.90 : x
  2. Step 2: Convert to fraction form
    1,242,171,624.90/1,861,674,924.15 = 660,184,680.90/x
  3. Step 3: Cross multiply
    1,242,171,624.90x = 1,861,674,924.15 × 660,184,680.90
  4. Step 4: Simplify right side
    1,242,171,624.90x = 1,229,049,265,739,499,520
  5. Step 5: Solve for x
    x = 1,229,049,265,739,499,520/1,242,171,624.90
  6. Step 6: Final answer
    x = 989,435,953.21

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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.