Home / 112,763,795.40-169,145,693.10-78,751,571.40

Finding the Fourth Proportional to 112,763,795.40, 169,145,693.10 and 78,751,571.40

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Solution

The fourth proportional to 112,763,795.40, 169,145,693.10 and 78,751,571.40 is: 118,127,357.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,763,795.40 : 169,145,693.10 = 78,751,571.40 : x
  2. Step 2: Convert to fraction form
    112,763,795.40/169,145,693.10 = 78,751,571.40/x
  3. Step 3: Cross multiply
    112,763,795.40x = 169,145,693.10 × 78,751,571.40
  4. Step 4: Simplify right side
    112,763,795.40x = 13,320,489,127,167,138
  5. Step 5: Solve for x
    x = 13,320,489,127,167,138/112,763,795.40
  6. Step 6: Final answer
    x = 118,127,357.10

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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.