Home / 280,496,285.98-387,077,448.27-156,737,980.06

Finding the Fourth Proportional to 280,496,285.98, 387,077,448.27 and 156,737,980.06

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Solution

The fourth proportional to 280,496,285.98, 387,077,448.27 and 156,737,980.06 is: 216,294,262.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,496,285.98 : 387,077,448.27 = 156,737,980.06 : x
  2. Step 2: Convert to fraction form
    280,496,285.98/387,077,448.27 = 156,737,980.06/x
  3. Step 3: Cross multiply
    280,496,285.98x = 387,077,448.27 × 156,737,980.06
  4. Step 4: Simplify right side
    280,496,285.98x = 60,669,737,368,618,936
  5. Step 5: Solve for x
    x = 60,669,737,368,618,936/280,496,285.98
  6. Step 6: Final answer
    x = 216,294,262.71

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1.5x scale

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.