Home / 281,931,558.91-389,033,996.85-156,489,041.97

Finding the Fourth Proportional to 281,931,558.91, 389,033,996.85 and 156,489,041.97

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Solution

The fourth proportional to 281,931,558.91, 389,033,996.85 and 156,489,041.97 is: 215,937,363.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,931,558.91 : 389,033,996.85 = 156,489,041.97 : x
  2. Step 2: Convert to fraction form
    281,931,558.91/389,033,996.85 = 156,489,041.97/x
  3. Step 3: Cross multiply
    281,931,558.91x = 389,033,996.85 × 156,489,041.97
  4. Step 4: Simplify right side
    281,931,558.91x = 60,879,557,460,816,504
  5. Step 5: Solve for x
    x = 60,879,557,460,816,504/281,931,558.91
  6. Step 6: Final answer
    x = 215,937,363.30

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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.