Home / 38,779,519-53,518,130.52-21,375,824.96

Finding the Fourth Proportional to 38,779,519, 53,518,130.52 and 21,375,824.96

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Solution

The fourth proportional to 38,779,519, 53,518,130.52 and 21,375,824.96 is: 29,499,958.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,779,519 : 53,518,130.52 = 21,375,824.96 : x
  2. Step 2: Convert to fraction form
    38,779,519/53,518,130.52 = 21,375,824.96/x
  3. Step 3: Cross multiply
    38,779,519x = 53,518,130.52 × 21,375,824.96
  4. Step 4: Simplify right side
    38,779,519x = 1,143,994,190,181,954
  5. Step 5: Solve for x
    x = 1,143,994,190,181,954/38,779,519
  6. Step 6: Final answer
    x = 29,499,958.22

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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.