Home / 129,028,509.60-193,542,764.40-118,726,864.80

Finding the Fourth Proportional to 129,028,509.60, 193,542,764.40 and 118,726,864.80

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Solution

The fourth proportional to 129,028,509.60, 193,542,764.40 and 118,726,864.80 is: 178,090,297.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,028,509.60 : 193,542,764.40 = 118,726,864.80 : x
  2. Step 2: Convert to fraction form
    129,028,509.60/193,542,764.40 = 118,726,864.80/x
  3. Step 3: Cross multiply
    129,028,509.60x = 193,542,764.40 × 118,726,864.80
  4. Step 4: Simplify right side
    129,028,509.60x = 22,978,725,621,937,052
  5. Step 5: Solve for x
    x = 22,978,725,621,937,052/129,028,509.60
  6. Step 6: Final answer
    x = 178,090,297.20

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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.