Home / 128,740,053.70-193,110,080.55-114,710,011.30

Finding the Fourth Proportional to 128,740,053.70, 193,110,080.55 and 114,710,011.30

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Solution

The fourth proportional to 128,740,053.70, 193,110,080.55 and 114,710,011.30 is: 172,065,016.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,740,053.70 : 193,110,080.55 = 114,710,011.30 : x
  2. Step 2: Convert to fraction form
    128,740,053.70/193,110,080.55 = 114,710,011.30/x
  3. Step 3: Cross multiply
    128,740,053.70x = 193,110,080.55 × 114,710,011.30
  4. Step 4: Simplify right side
    128,740,053.70x = 22,151,659,522,034,412
  5. Step 5: Solve for x
    x = 22,151,659,522,034,412/128,740,053.70
  6. Step 6: Final answer
    x = 172,065,016.95

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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.