Home / 83,896,368.80-125,631,976.80-66,890,256.80

Finding the Fourth Proportional to 83,896,368.80, 125,631,976.80 and 66,890,256.80

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Solution

The fourth proportional to 83,896,368.80, 125,631,976.80 and 66,890,256.80 is: 100,165,898.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,896,368.80 : 125,631,976.80 = 66,890,256.80 : x
  2. Step 2: Convert to fraction form
    83,896,368.80/125,631,976.80 = 66,890,256.80/x
  3. Step 3: Cross multiply
    83,896,368.80x = 125,631,976.80 × 66,890,256.80
  4. Step 4: Simplify right side
    83,896,368.80x = 8,403,555,190,443,642
  5. Step 5: Solve for x
    x = 8,403,555,190,443,642/83,896,368.80
  6. Step 6: Final answer
    x = 100,165,898.84

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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.