Home / 97,008,739.20-145,300,532.40-86,238,201.60

Finding the Fourth Proportional to 97,008,739.20, 145,300,532.40 and 86,238,201.60

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Solution

The fourth proportional to 97,008,739.20, 145,300,532.40 and 86,238,201.60 is: 129,168,327.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,008,739.20 : 145,300,532.40 = 86,238,201.60 : x
  2. Step 2: Convert to fraction form
    97,008,739.20/145,300,532.40 = 86,238,201.60/x
  3. Step 3: Cross multiply
    97,008,739.20x = 145,300,532.40 × 86,238,201.60
  4. Step 4: Simplify right side
    97,008,739.20x = 12,530,456,605,698,532
  5. Step 5: Solve for x
    x = 12,530,456,605,698,532/97,008,739.20
  6. Step 6: Final answer
    x = 129,168,327.61

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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.