Home / 208,077,726.80-312,116,590.20-126,448,389.20

Finding the Fourth Proportional to 208,077,726.80, 312,116,590.20 and 126,448,389.20

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Solution

The fourth proportional to 208,077,726.80, 312,116,590.20 and 126,448,389.20 is: 189,672,583.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,077,726.80 : 312,116,590.20 = 126,448,389.20 : x
  2. Step 2: Convert to fraction form
    208,077,726.80/312,116,590.20 = 126,448,389.20/x
  3. Step 3: Cross multiply
    208,077,726.80x = 312,116,590.20 × 126,448,389.20
  4. Step 4: Simplify right side
    208,077,726.80x = 39,466,640,073,386,504
  5. Step 5: Solve for x
    x = 39,466,640,073,386,504/208,077,726.80
  6. Step 6: Final answer
    x = 189,672,583.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.