Home / 280,496,289.48-387,077,453.10-156,737,983.56

Finding the Fourth Proportional to 280,496,289.48, 387,077,453.10 and 156,737,983.56

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Solution

The fourth proportional to 280,496,289.48, 387,077,453.10 and 156,737,983.56 is: 216,294,267.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,496,289.48 : 387,077,453.10 = 156,737,983.56 : x
  2. Step 2: Convert to fraction form
    280,496,289.48/387,077,453.10 = 156,737,983.56/x
  3. Step 3: Cross multiply
    280,496,289.48x = 387,077,453.10 × 156,737,983.56
  4. Step 4: Simplify right side
    280,496,289.48x = 60,669,739,480,434,472
  5. Step 5: Solve for x
    x = 60,669,739,480,434,472/280,496,289.48
  6. Step 6: Final answer
    x = 216,294,267.54

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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.