Home / 127,353,551.54-190,835,473.02-85,700,172.29

Finding the Fourth Proportional to 127,353,551.54, 190,835,473.02 and 85,700,172.29

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Solution

The fourth proportional to 127,353,551.54, 190,835,473.02 and 85,700,172.29 is: 128,419,134.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,353,551.54 : 190,835,473.02 = 85,700,172.29 : x
  2. Step 2: Convert to fraction form
    127,353,551.54/190,835,473.02 = 85,700,172.29/x
  3. Step 3: Cross multiply
    127,353,551.54x = 190,835,473.02 × 85,700,172.29
  4. Step 4: Simplify right side
    127,353,551.54x = 16,354,632,916,857,648
  5. Step 5: Solve for x
    x = 16,354,632,916,857,648/127,353,551.54
  6. Step 6: Final answer
    x = 128,419,134.91

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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.