Home / 140,631,643.15-194,053,263.24-81,095,138.20

Finding the Fourth Proportional to 140,631,643.15, 194,053,263.24 and 81,095,138.20

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Solution

The fourth proportional to 140,631,643.15, 194,053,263.24 and 81,095,138.20 is: 111,900,677.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,631,643.15 : 194,053,263.24 = 81,095,138.20 : x
  2. Step 2: Convert to fraction form
    140,631,643.15/194,053,263.24 = 81,095,138.20/x
  3. Step 3: Cross multiply
    140,631,643.15x = 194,053,263.24 × 81,095,138.20
  4. Step 4: Simplify right side
    140,631,643.15x = 15,736,776,200,608,782
  5. Step 5: Solve for x
    x = 15,736,776,200,608,782/140,631,643.15
  6. Step 6: Final answer
    x = 111,900,677.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.