Home / 38,903,346.70-53,686,785.18-21,262,605.64

Finding the Fourth Proportional to 38,903,346.70, 53,686,785.18 and 21,262,605.64

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Solution

The fourth proportional to 38,903,346.70, 53,686,785.18 and 21,262,605.64 is: 29,342,486.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,903,346.70 : 53,686,785.18 = 21,262,605.64 : x
  2. Step 2: Convert to fraction form
    38,903,346.70/53,686,785.18 = 21,262,605.64/x
  3. Step 3: Cross multiply
    38,903,346.70x = 53,686,785.18 × 21,262,605.64
  4. Step 4: Simplify right side
    38,903,346.70x = 1,141,520,941,361,736.50
  5. Step 5: Solve for x
    x = 1,141,520,941,361,736.50/38,903,346.70
  6. Step 6: Final answer
    x = 29,342,486.91

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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.