Home / 805,788,509.05-1,208,682,763.58-288,235,833.85

Finding the Fourth Proportional to 805,788,509.05, 1,208,682,763.58 and 288,235,833.85

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Solution

The fourth proportional to 805,788,509.05, 1,208,682,763.58 and 288,235,833.85 is: 432,353,750.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,788,509.05 : 1,208,682,763.58 = 288,235,833.85 : x
  2. Step 2: Convert to fraction form
    805,788,509.05/1,208,682,763.58 = 288,235,833.85/x
  3. Step 3: Cross multiply
    805,788,509.05x = 1,208,682,763.58 × 288,235,833.85
  4. Step 4: Simplify right side
    805,788,509.05x = 348,385,684,219,162,560
  5. Step 5: Solve for x
    x = 348,385,684,219,162,560/805,788,509.05
  6. Step 6: Final answer
    x = 432,353,750.78

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Double scale
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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.