Home / 38,761,491.20-53,493,246.80-21,357,833.60

Finding the Fourth Proportional to 38,761,491.20, 53,493,246.80 and 21,357,833.60

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Solution

The fourth proportional to 38,761,491.20, 53,493,246.80 and 21,357,833.60 is: 29,475,126.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,761,491.20 : 53,493,246.80 = 21,357,833.60 : x
  2. Step 2: Convert to fraction form
    38,761,491.20/53,493,246.80 = 21,357,833.60/x
  3. Step 3: Cross multiply
    38,761,491.20x = 53,493,246.80 × 21,357,833.60
  4. Step 4: Simplify right side
    38,761,491.20x = 1,142,499,863,878,132.50
  5. Step 5: Solve for x
    x = 1,142,499,863,878,132.50/38,761,491.20
  6. Step 6: Final answer
    x = 29,475,126.69

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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.