Home / 38,648,901.96-53,336,147.34-21,245,980.68

Finding the Fourth Proportional to 38,648,901.96, 53,336,147.34 and 21,245,980.68

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Solution

The fourth proportional to 38,648,901.96, 53,336,147.34 and 21,245,980.68 is: 29,319,817.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,648,901.96 : 53,336,147.34 = 21,245,980.68 : x
  2. Step 2: Convert to fraction form
    38,648,901.96/53,336,147.34 = 21,245,980.68/x
  3. Step 3: Cross multiply
    38,648,901.96x = 53,336,147.34 × 21,245,980.68
  4. Step 4: Simplify right side
    38,648,901.96x = 1,133,178,755,931,273.50
  5. Step 5: Solve for x
    x = 1,133,178,755,931,273.50/38,648,901.96
  6. Step 6: Final answer
    x = 29,319,817.60

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Double scale
Find fourth proportional to 38,648,902.96, 53,336,148.72 and 21,245,981.68
Similar ratio
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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.