Home / 165,998,724.72-229,097,669.90-138,072,165.16

Finding the Fourth Proportional to 165,998,724.72, 229,097,669.90 and 138,072,165.16

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Solution

The fourth proportional to 165,998,724.72, 229,097,669.90 and 138,072,165.16 is: 190,555,748.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,998,724.72 : 229,097,669.90 = 138,072,165.16 : x
  2. Step 2: Convert to fraction form
    165,998,724.72/229,097,669.90 = 138,072,165.16/x
  3. Step 3: Cross multiply
    165,998,724.72x = 229,097,669.90 × 138,072,165.16
  4. Step 4: Simplify right side
    165,998,724.72x = 31,632,011,316,203,960
  5. Step 5: Solve for x
    x = 31,632,011,316,203,960/165,998,724.72
  6. Step 6: Final answer
    x = 190,555,748.96

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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.