Home / 243,543,891.28-365,315,829.86-112,347,349.92

Finding the Fourth Proportional to 243,543,891.28, 365,315,829.86 and 112,347,349.92

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Solution

The fourth proportional to 243,543,891.28, 365,315,829.86 and 112,347,349.92 is: 168,521,021.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,543,891.28 : 365,315,829.86 = 112,347,349.92 : x
  2. Step 2: Convert to fraction form
    243,543,891.28/365,315,829.86 = 112,347,349.92/x
  3. Step 3: Cross multiply
    243,543,891.28x = 365,315,829.86 × 112,347,349.92
  4. Step 4: Simplify right side
    243,543,891.28x = 41,042,265,368,596,608
  5. Step 5: Solve for x
    x = 41,042,265,368,596,608/243,543,891.28
  6. Step 6: Final answer
    x = 168,521,021.62

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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.