Home / 127,792,316.40-191,576,500.20-76,620,015.60

Finding the Fourth Proportional to 127,792,316.40, 191,576,500.20 and 76,620,015.60

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Solution

The fourth proportional to 127,792,316.40, 191,576,500.20 and 76,620,015.60 is: 114,862,887.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,792,316.40 : 191,576,500.20 = 76,620,015.60 : x
  2. Step 2: Convert to fraction form
    127,792,316.40/191,576,500.20 = 76,620,015.60/x
  3. Step 3: Cross multiply
    127,792,316.40x = 191,576,500.20 × 76,620,015.60
  4. Step 4: Simplify right side
    127,792,316.40x = 14,678,594,433,917,402
  5. Step 5: Solve for x
    x = 14,678,594,433,917,402/127,792,316.40
  6. Step 6: Final answer
    x = 114,862,887.28

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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.