Home / 127,438,002.28-190,888,230.30-86,522,556.52

Finding the Fourth Proportional to 127,438,002.28, 190,888,230.30 and 86,522,556.52

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Solution

The fourth proportional to 127,438,002.28, 190,888,230.30 and 86,522,556.52 is: 129,601,354.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,438,002.28 : 190,888,230.30 = 86,522,556.52 : x
  2. Step 2: Convert to fraction form
    127,438,002.28/190,888,230.30 = 86,522,556.52/x
  3. Step 3: Cross multiply
    127,438,002.28x = 190,888,230.30 × 86,522,556.52
  4. Step 4: Simplify right side
    127,438,002.28x = 16,516,137,695,134,526
  5. Step 5: Solve for x
    x = 16,516,137,695,134,526/127,438,002.28
  6. Step 6: Final answer
    x = 129,601,354.38

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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.