Home / 127,360,607.60-191,040,911.40-81,444,105.20

Finding the Fourth Proportional to 127,360,607.60, 191,040,911.40 and 81,444,105.20

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Solution

The fourth proportional to 127,360,607.60, 191,040,911.40 and 81,444,105.20 is: 122,166,157.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,360,607.60 : 191,040,911.40 = 81,444,105.20 : x
  2. Step 2: Convert to fraction form
    127,360,607.60/191,040,911.40 = 81,444,105.20/x
  3. Step 3: Cross multiply
    127,360,607.60x = 191,040,911.40 × 81,444,105.20
  4. Step 4: Simplify right side
    127,360,607.60x = 15,559,156,085,565,480
  5. Step 5: Solve for x
    x = 15,559,156,085,565,480/127,360,607.60
  6. Step 6: Final answer
    x = 122,166,157.80

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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.