Home / 128,759,975.10-193,139,962.65-114,651,200.70

Finding the Fourth Proportional to 128,759,975.10, 193,139,962.65 and 114,651,200.70

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Solution

The fourth proportional to 128,759,975.10, 193,139,962.65 and 114,651,200.70 is: 171,976,801.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,759,975.10 : 193,139,962.65 = 114,651,200.70 : x
  2. Step 2: Convert to fraction form
    128,759,975.10/193,139,962.65 = 114,651,200.70/x
  3. Step 3: Cross multiply
    128,759,975.10x = 193,139,962.65 × 114,651,200.70
  4. Step 4: Simplify right side
    128,759,975.10x = 22,143,728,620,975,656
  5. Step 5: Solve for x
    x = 22,143,728,620,975,656/128,759,975.10
  6. Step 6: Final answer
    x = 171,976,801.05

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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.