Home / 282,129,929.10-389,352,230.32-156,682,678.82

Finding the Fourth Proportional to 282,129,929.10, 389,352,230.32 and 156,682,678.82

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Solution

The fourth proportional to 282,129,929.10, 389,352,230.32 and 156,682,678.82 is: 216,229,276.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,129,929.10 : 389,352,230.32 = 156,682,678.82 : x
  2. Step 2: Convert to fraction form
    282,129,929.10/389,352,230.32 = 156,682,678.82/x
  3. Step 3: Cross multiply
    282,129,929.10x = 389,352,230.32 × 156,682,678.82
  4. Step 4: Simplify right side
    282,129,929.10x = 61,004,750,451,079,224
  5. Step 5: Solve for x
    x = 61,004,750,451,079,224/282,129,929.10
  6. Step 6: Final answer
    x = 216,229,276.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.