Home / 38,779,505.96-53,515,705.18-21,376,141.82

Finding the Fourth Proportional to 38,779,505.96, 53,515,705.18 and 21,376,141.82

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Solution

The fourth proportional to 38,779,505.96, 53,515,705.18 and 21,376,141.82 is: 29,499,068.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,779,505.96 : 53,515,705.18 = 21,376,141.82 : x
  2. Step 2: Convert to fraction form
    38,779,505.96/53,515,705.18 = 21,376,141.82/x
  3. Step 3: Cross multiply
    38,779,505.96x = 53,515,705.18 × 21,376,141.82
  4. Step 4: Simplify right side
    38,779,505.96x = 1,143,959,303,524,988.75
  5. Step 5: Solve for x
    x = 1,143,959,303,524,988.75/38,779,505.96
  6. Step 6: Final answer
    x = 29,499,068.52

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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.