Home / 280,496,285.48-387,077,447.58-156,737,979.56

Finding the Fourth Proportional to 280,496,285.48, 387,077,447.58 and 156,737,979.56

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Solution

The fourth proportional to 280,496,285.48, 387,077,447.58 and 156,737,979.56 is: 216,294,262.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,496,285.48 : 387,077,447.58 = 156,737,979.56 : x
  2. Step 2: Convert to fraction form
    280,496,285.48/387,077,447.58 = 156,737,979.56/x
  3. Step 3: Cross multiply
    280,496,285.48x = 387,077,447.58 × 156,737,979.56
  4. Step 4: Simplify right side
    280,496,285.48x = 60,669,737,066,931,008
  5. Step 5: Solve for x
    x = 60,669,737,066,931,008/280,496,285.48
  6. Step 6: Final answer
    x = 216,294,262.02

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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.