Home / 143,066,031.85-197,435,892.77-80,353,181.22

Finding the Fourth Proportional to 143,066,031.85, 197,435,892.77 and 80,353,181.22

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Solution

The fourth proportional to 143,066,031.85, 197,435,892.77 and 80,353,181.22 is: 110,890,068.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,066,031.85 : 197,435,892.77 = 80,353,181.22 : x
  2. Step 2: Convert to fraction form
    143,066,031.85/197,435,892.77 = 80,353,181.22/x
  3. Step 3: Cross multiply
    143,066,031.85x = 197,435,892.77 × 80,353,181.22
  4. Step 4: Simplify right side
    143,066,031.85x = 15,864,602,071,080,298
  5. Step 5: Solve for x
    x = 15,864,602,071,080,298/143,066,031.85
  6. Step 6: Final answer
    x = 110,890,068.49

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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.