Home / 38,779,507.46-53,515,707.25-21,376,143.32

Finding the Fourth Proportional to 38,779,507.46, 53,515,707.25 and 21,376,143.32

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Solution

The fourth proportional to 38,779,507.46, 53,515,707.25 and 21,376,143.32 is: 29,499,070.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,779,507.46 : 53,515,707.25 = 21,376,143.32 : x
  2. Step 2: Convert to fraction form
    38,779,507.46/53,515,707.25 = 21,376,143.32/x
  3. Step 3: Cross multiply
    38,779,507.46x = 53,515,707.25 × 21,376,143.32
  4. Step 4: Simplify right side
    38,779,507.46x = 1,143,959,428,047,163
  5. Step 5: Solve for x
    x = 1,143,959,428,047,163/38,779,507.46
  6. Step 6: Final answer
    x = 29,499,070.59

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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.