Home / 87,939,109.60-131,908,664.40-64,980,858.40

Finding the Fourth Proportional to 87,939,109.60, 131,908,664.40 and 64,980,858.40

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Solution

The fourth proportional to 87,939,109.60, 131,908,664.40 and 64,980,858.40 is: 97,471,287.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,939,109.60 : 131,908,664.40 = 64,980,858.40 : x
  2. Step 2: Convert to fraction form
    87,939,109.60/131,908,664.40 = 64,980,858.40/x
  3. Step 3: Cross multiply
    87,939,109.60x = 131,908,664.40 × 64,980,858.40
  4. Step 4: Simplify right side
    87,939,109.60x = 8,571,538,243,109,521
  5. Step 5: Solve for x
    x = 8,571,538,243,109,521/87,939,109.60
  6. Step 6: Final answer
    x = 97,471,287.60

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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.