Home / 138,784,771.60-191,610,040.04-89,311,102.16

Finding the Fourth Proportional to 138,784,771.60, 191,610,040.04 and 89,311,102.16

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Solution

The fourth proportional to 138,784,771.60, 191,610,040.04 and 89,311,102.16 is: 123,305,342.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,784,771.60 : 191,610,040.04 = 89,311,102.16 : x
  2. Step 2: Convert to fraction form
    138,784,771.60/191,610,040.04 = 89,311,102.16/x
  3. Step 3: Cross multiply
    138,784,771.60x = 191,610,040.04 × 89,311,102.16
  4. Step 4: Simplify right side
    138,784,771.60x = 17,112,903,860,894,130
  5. Step 5: Solve for x
    x = 17,112,903,860,894,130/138,784,771.60
  6. Step 6: Final answer
    x = 123,305,342.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.