Home / 128,945,309.10-193,417,963.65-114,836,534.70

Finding the Fourth Proportional to 128,945,309.10, 193,417,963.65 and 114,836,534.70

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Solution

The fourth proportional to 128,945,309.10, 193,417,963.65 and 114,836,534.70 is: 172,254,802.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,945,309.10 : 193,417,963.65 = 114,836,534.70 : x
  2. Step 2: Convert to fraction form
    128,945,309.10/193,417,963.65 = 114,836,534.70/x
  3. Step 3: Cross multiply
    128,945,309.10x = 193,417,963.65 × 114,836,534.70
  4. Step 4: Simplify right side
    128,945,309.10x = 22,211,448,694,296,564
  5. Step 5: Solve for x
    x = 22,211,448,694,296,564/128,945,309.10
  6. Step 6: Final answer
    x = 172,254,802.05

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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.