Home / 280,496,284.48-387,077,446.20-156,737,978.56

Finding the Fourth Proportional to 280,496,284.48, 387,077,446.20 and 156,737,978.56

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Solution

The fourth proportional to 280,496,284.48, 387,077,446.20 and 156,737,978.56 is: 216,294,260.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,496,284.48 : 387,077,446.20 = 156,737,978.56 : x
  2. Step 2: Convert to fraction form
    280,496,284.48/387,077,446.20 = 156,737,978.56/x
  3. Step 3: Cross multiply
    280,496,284.48x = 387,077,446.20 × 156,737,978.56
  4. Step 4: Simplify right side
    280,496,284.48x = 60,669,736,463,555,152
  5. Step 5: Solve for x
    x = 60,669,736,463,555,152/280,496,284.48
  6. Step 6: Final answer
    x = 216,294,260.64

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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.