Home / 127,939,637.60-191,909,456.40-125,388,720.80

Finding the Fourth Proportional to 127,939,637.60, 191,909,456.40 and 125,388,720.80

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Solution

The fourth proportional to 127,939,637.60, 191,909,456.40 and 125,388,720.80 is: 188,083,081.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,939,637.60 : 191,909,456.40 = 125,388,720.80 : x
  2. Step 2: Convert to fraction form
    127,939,637.60/191,909,456.40 = 125,388,720.80/x
  3. Step 3: Cross multiply
    127,939,637.60x = 191,909,456.40 × 125,388,720.80
  4. Step 4: Simplify right side
    127,939,637.60x = 24,063,281,247,419,372
  5. Step 5: Solve for x
    x = 24,063,281,247,419,372/127,939,637.60
  6. Step 6: Final answer
    x = 188,083,081.20

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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.