Home / 9,821,861.90-14,707,909.65-7,831,205.90

Finding the Fourth Proportional to 9,821,861.90, 14,707,909.65 and 7,831,205.90

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Solution

The fourth proportional to 9,821,861.90, 14,707,909.65 and 7,831,205.90 is: 11,726,968.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,821,861.90 : 14,707,909.65 = 7,831,205.90 : x
  2. Step 2: Convert to fraction form
    9,821,861.90/14,707,909.65 = 7,831,205.90/x
  3. Step 3: Cross multiply
    9,821,861.90x = 14,707,909.65 × 7,831,205.90
  4. Step 4: Simplify right side
    9,821,861.90x = 115,180,668,827,746.94
  5. Step 5: Solve for x
    x = 115,180,668,827,746.94/9,821,861.90
  6. Step 6: Final answer
    x = 11,726,968.88

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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.