Home / 85,293,006.40-127,939,509.60-83,592,395.20

Finding the Fourth Proportional to 85,293,006.40, 127,939,509.60 and 83,592,395.20

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Solution

The fourth proportional to 85,293,006.40, 127,939,509.60 and 83,592,395.20 is: 125,388,592.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,293,006.40 : 127,939,509.60 = 83,592,395.20 : x
  2. Step 2: Convert to fraction form
    85,293,006.40/127,939,509.60 = 83,592,395.20/x
  3. Step 3: Cross multiply
    85,293,006.40x = 127,939,509.60 × 83,592,395.20
  4. Step 4: Simplify right side
    85,293,006.40x = 10,694,770,048,177,394
  5. Step 5: Solve for x
    x = 10,694,770,048,177,394/85,293,006.40
  6. Step 6: Final answer
    x = 125,388,592.80

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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.