Home / 113,407,999.20-170,111,998.80-99,971,071.20

Finding the Fourth Proportional to 113,407,999.20, 170,111,998.80 and 99,971,071.20

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Solution

The fourth proportional to 113,407,999.20, 170,111,998.80 and 99,971,071.20 is: 149,956,606.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,407,999.20 : 170,111,998.80 = 99,971,071.20 : x
  2. Step 2: Convert to fraction form
    113,407,999.20/170,111,998.80 = 99,971,071.20/x
  3. Step 3: Cross multiply
    113,407,999.20x = 170,111,998.80 × 99,971,071.20
  4. Step 4: Simplify right side
    113,407,999.20x = 17,006,278,744,009,116
  5. Step 5: Solve for x
    x = 17,006,278,744,009,116/113,407,999.20
  6. Step 6: Final answer
    x = 149,956,606.80

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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.