Home / 854,131,587.20-1,281,197,380.80-711,280,246.40

Finding the Fourth Proportional to 854,131,587.20, 1,281,197,380.80 and 711,280,246.40

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Solution

The fourth proportional to 854,131,587.20, 1,281,197,380.80 and 711,280,246.40 is: 1,066,920,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,131,587.20 : 1,281,197,380.80 = 711,280,246.40 : x
  2. Step 2: Convert to fraction form
    854,131,587.20/1,281,197,380.80 = 711,280,246.40/x
  3. Step 3: Cross multiply
    854,131,587.20x = 1,281,197,380.80 × 711,280,246.40
  4. Step 4: Simplify right side
    854,131,587.20x = 911,290,388,702,458,624
  5. Step 5: Solve for x
    x = 911,290,388,702,458,624/854,131,587.20
  6. Step 6: Final answer
    x = 1,066,920,369.60

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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.