Home / 129,185,323.60-193,558,625.40-77,959,704.40

Finding the Fourth Proportional to 129,185,323.60, 193,558,625.40 and 77,959,704.40

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Solution

The fourth proportional to 129,185,323.60, 193,558,625.40 and 77,959,704.40 is: 116,807,179.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,185,323.60 : 193,558,625.40 = 77,959,704.40 : x
  2. Step 2: Convert to fraction form
    129,185,323.60/193,558,625.40 = 77,959,704.40/x
  3. Step 3: Cross multiply
    129,185,323.60x = 193,558,625.40 × 77,959,704.40
  4. Step 4: Simplify right side
    129,185,323.60x = 15,089,773,220,254,334
  5. Step 5: Solve for x
    x = 15,089,773,220,254,334/129,185,323.60
  6. Step 6: Final answer
    x = 116,807,179.02

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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.