Home / 19,955,781.60-29,933,672.40-7,821,212.10

Finding the Fourth Proportional to 19,955,781.60, 29,933,672.40 and 7,821,212.10

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Solution

The fourth proportional to 19,955,781.60, 29,933,672.40 and 7,821,212.10 is: 11,731,818.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,955,781.60 : 29,933,672.40 = 7,821,212.10 : x
  2. Step 2: Convert to fraction form
    19,955,781.60/29,933,672.40 = 7,821,212.10/x
  3. Step 3: Cross multiply
    19,955,781.60x = 29,933,672.40 × 7,821,212.10
  4. Step 4: Simplify right side
    19,955,781.60x = 234,117,600,772,316.03
  5. Step 5: Solve for x
    x = 234,117,600,772,316.03/19,955,781.60
  6. Step 6: Final answer
    x = 11,731,818.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.