Home / 38,461,508.69-53,074,779.68-21,054,486.78

Finding the Fourth Proportional to 38,461,508.69, 53,074,779.68 and 21,054,486.78

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Solution

The fourth proportional to 38,461,508.69, 53,074,779.68 and 21,054,486.78 is: 29,054,040.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,461,508.69 : 53,074,779.68 = 21,054,486.78 : x
  2. Step 2: Convert to fraction form
    38,461,508.69/53,074,779.68 = 21,054,486.78/x
  3. Step 3: Cross multiply
    38,461,508.69x = 53,074,779.68 × 21,054,486.78
  4. Step 4: Simplify right side
    38,461,508.69x = 1,117,462,247,176,608.88
  5. Step 5: Solve for x
    x = 1,117,462,247,176,608.88/38,461,508.69
  6. Step 6: Final answer
    x = 29,054,040.92

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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.