Home / 280,496,284.98-387,077,446.89-156,737,979.06

Finding the Fourth Proportional to 280,496,284.98, 387,077,446.89 and 156,737,979.06

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Solution

The fourth proportional to 280,496,284.98, 387,077,446.89 and 156,737,979.06 is: 216,294,261.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,496,284.98 : 387,077,446.89 = 156,737,979.06 : x
  2. Step 2: Convert to fraction form
    280,496,284.98/387,077,446.89 = 156,737,979.06/x
  3. Step 3: Cross multiply
    280,496,284.98x = 387,077,446.89 × 156,737,979.06
  4. Step 4: Simplify right side
    280,496,284.98x = 60,669,736,765,243,080
  5. Step 5: Solve for x
    x = 60,669,736,765,243,080/280,496,284.98
  6. Step 6: Final answer
    x = 216,294,261.33

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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.