Home / 126,588,705.20-189,883,057.80-121,486,871.60

Finding the Fourth Proportional to 126,588,705.20, 189,883,057.80 and 121,486,871.60

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Solution

The fourth proportional to 126,588,705.20, 189,883,057.80 and 121,486,871.60 is: 182,230,307.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,588,705.20 : 189,883,057.80 = 121,486,871.60 : x
  2. Step 2: Convert to fraction form
    126,588,705.20/189,883,057.80 = 121,486,871.60/x
  3. Step 3: Cross multiply
    126,588,705.20x = 189,883,057.80 × 121,486,871.60
  4. Step 4: Simplify right side
    126,588,705.20x = 23,068,298,661,963,980
  5. Step 5: Solve for x
    x = 23,068,298,661,963,980/126,588,705.20
  6. Step 6: Final answer
    x = 182,230,307.40

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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.