Home / 128,759,969.10-193,139,953.65-114,651,194.70

Finding the Fourth Proportional to 128,759,969.10, 193,139,953.65 and 114,651,194.70

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Solution

The fourth proportional to 128,759,969.10, 193,139,953.65 and 114,651,194.70 is: 171,976,792.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,759,969.10 : 193,139,953.65 = 114,651,194.70 : x
  2. Step 2: Convert to fraction form
    128,759,969.10/193,139,953.65 = 114,651,194.70/x
  3. Step 3: Cross multiply
    128,759,969.10x = 193,139,953.65 × 114,651,194.70
  4. Step 4: Simplify right side
    128,759,969.10x = 22,143,726,430,275,128
  5. Step 5: Solve for x
    x = 22,143,726,430,275,128/128,759,969.10
  6. Step 6: Final answer
    x = 171,976,792.05

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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.