Home / 128,748,200.70-193,122,301.05-114,639,426.30

Finding the Fourth Proportional to 128,748,200.70, 193,122,301.05 and 114,639,426.30

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Solution

The fourth proportional to 128,748,200.70, 193,122,301.05 and 114,639,426.30 is: 171,959,139.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,748,200.70 : 193,122,301.05 = 114,639,426.30 : x
  2. Step 2: Convert to fraction form
    128,748,200.70/193,122,301.05 = 114,639,426.30/x
  3. Step 3: Cross multiply
    128,748,200.70x = 193,122,301.05 × 114,639,426.30
  4. Step 4: Simplify right side
    128,748,200.70x = 22,139,429,798,107,888
  5. Step 5: Solve for x
    x = 22,139,429,798,107,888/128,748,200.70
  6. Step 6: Final answer
    x = 171,959,139.45

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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.