Home / 142,489,385.56-213,872,289.36-68,765,048.46

Finding the Fourth Proportional to 142,489,385.56, 213,872,289.36 and 68,765,048.46

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Solution

The fourth proportional to 142,489,385.56, 213,872,289.36 and 68,765,048.46 is: 103,214,273.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,489,385.56 : 213,872,289.36 = 68,765,048.46 : x
  2. Step 2: Convert to fraction form
    142,489,385.56/213,872,289.36 = 68,765,048.46/x
  3. Step 3: Cross multiply
    142,489,385.56x = 213,872,289.36 × 68,765,048.46
  4. Step 4: Simplify right side
    142,489,385.56x = 14,706,938,342,091,542
  5. Step 5: Solve for x
    x = 14,706,938,342,091,542/142,489,385.56
  6. Step 6: Final answer
    x = 103,214,273.01

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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.