Home / 21,117,482.48-29,127,071.40-19,380,749.96

Finding the Fourth Proportional to 21,117,482.48, 29,127,071.40 and 19,380,749.96

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Solution

The fourth proportional to 21,117,482.48, 29,127,071.40 and 19,380,749.96 is: 26,731,618.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,117,482.48 : 29,127,071.40 = 19,380,749.96 : x
  2. Step 2: Convert to fraction form
    21,117,482.48/29,127,071.40 = 19,380,749.96/x
  3. Step 3: Cross multiply
    21,117,482.48x = 29,127,071.40 × 19,380,749.96
  4. Step 4: Simplify right side
    21,117,482.48x = 564,504,487,870,467.12
  5. Step 5: Solve for x
    x = 564,504,487,870,467.12/21,117,482.48
  6. Step 6: Final answer
    x = 26,731,618.62

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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.